problem stringlengths 67 28.8k | completion stringlengths 36 8.76k | conversations listlengths 2 2 | source stringclasses 1
value |
|---|---|---|---|
In anticipation of MathJax being temporarily disabled, the rendered MathJax in this question has been replaced with images. You are still welcome to post answers but you'll have to view the rendered MathJax on another site.
PPCG just got MathJax! This means we can now easily include well formatted mathematical formulas... | Here’s a concise Python program that generates the desired MathJax code for the golden ratio's continued fraction based on the input `n`:
```python
def golden_ratio_continued_fraction(n):
if n == 0:
return r'$$\varphi=1+\dots$$'
else:
fraction = '1+' + r'\cfrac1{' + '1+' * (n - 1) + r'\ddots}'
... | [
{
"from": "human",
"value": "In anticipation of MathJax being temporarily disabled, the rendered MathJax in this question has been replaced with images. You are still welcome to post answers but you'll have to view the rendered MathJax on another site.\nPPCG just got MathJax! This means we can now easily in... | codegolf |
Overview
Pearls (or Masyu) is a logic game played on a grid. There are black and white pearls placed on the grid. The object is to form a single, closed loop that travels through each pearl using only straight line segments and right angles.
There are some rules that govern how the loop interacts with pearls:
White pe... | To solve the Masyu puzzle you provided, we need to follow the rules of the game and ensure that our loop passes through all pearls correctly while adhering to the movement constraints. Below is a step-by-step solution for the given grid:
### Given Grid:
```
..w.w.....
....w...b.
..b.b.w...
...w..w...
b....w...w
..w...... | [
{
"from": "human",
"value": "Overview\nPearls (or Masyu) is a logic game played on a grid. There are black and white pearls placed on the grid. The object is to form a single, closed loop that travels through each pearl using only straight line segments and right angles.\nThere are some rules that govern ho... | codegolf |
Monday Mini-Golf: A series of short code-golf challenges, posted (hopefully!) every Monday.
A Fibonacci-like sequence is obtained using the same method as the famous Fibonacci sequence; that is, each number F(n) is found by adding the previous two numbers in the sequence (F(n) = F(n-1) + F(n-2)), or by subtracting the ... | Here's a solution in Python for the Fibonacci-like sequence challenge. This code takes in two starting integers and the length of the sequence to generate and prints out the required output.
```python
def fib_like(a, b, n):
if a < b:
a, b = b, a
seq = [b]
while b >= a:
b, a = a - b, b
... | [
{
"from": "human",
"value": "Monday Mini-Golf: A series of short code-golf challenges, posted (hopefully!) every Monday.\nA Fibonacci-like sequence is obtained using the same method as the famous Fibonacci sequence; that is, each number F(n) is found by adding the previous two numbers in the sequence (F(n) ... | codegolf |
I like to golf in dc, but I'm sometimes frustrated because dc doesn't have bitwise operations.
Challenge
Provide four named functions which implement the equivalent of the c bitwise operations &, |, ~ and ^ (bitwise AND, OR, NOT and XOR). Each function will take two operands (~ takes only one) which are at least 32-bi... | Certainly! Below are the implementations of the bitwise operations AND, OR, NOT, and XOR in a hypothetical DC language. The functions will use basic arithmetic and control structures as allowed.
### Function Implementations
```dc
// Bitwise AND
func bitwise_and(a, b) {
// Initialize result
res = 0
// Loo... | [
{
"from": "human",
"value": "I like to golf in dc, but I'm sometimes frustrated because dc doesn't have bitwise operations.\nChallenge\nProvide four named functions which implement the equivalent of the c bitwise operations &, |, ~ and ^ (bitwise AND, OR, NOT and XOR). Each function will take two operands ... | codegolf |
You should write a program or function which receives the volume of a bowl and the volume of the water in it as input and outputs or returns an ASCII representation of a bowl with water in it with the desired volumes.
A bowl has the following structure:
\ /
\___/
The bowl has at least one _ character. The count... | Here's a Python function that generates an ASCII representation of a bowl with the specified volumes. This implementation focuses on brevity while meeting the requirements of the problem:
```python
def bowl_water(bowl_volume, water_volume):
w = water_volume
b = bowl_volume - 1
p = (b - w) // 2
s = (b -... | [
{
"from": "human",
"value": "You should write a program or function which receives the volume of a bowl and the volume of the water in it as input and outputs or returns an ASCII representation of a bowl with water in it with the desired volumes.\nA bowl has the following structure:\n \\ /\n \\___/\n\n... | codegolf |
Your task is to create a program that prints "Greetings, Planet!" exactly to the console. Seems simple enough, right? Well, here's the trick. The code must be a palindrome, meaning it reads from right to left the same as in left to right.
Standard loopholes are NOT allowed.
| Creating a palindrome program that prints "Greetings, Planet!" can be a fun challenge. Below is a Python example that achieves this, utilizing a creative approach to ensure that the code reads the same forwards and backwards:
```python
def p():print("Greetings, Planet!") ;p()
```
This code will output "Greetings, Pla... | [
{
"from": "human",
"value": "Your task is to create a program that prints \"Greetings, Planet!\" exactly to the console. Seems simple enough, right? Well, here's the trick. The code must be a palindrome, meaning it reads from right to left the same as in left to right.\nStandard loopholes are NOT allowed.\n... | codegolf |
Your task is to create a random sequence of moves, which can be used to scramble a Rubik's Cube. Such a scramble is made up of exactly 25 moves. Each move consist of of the letters UDRLFB optionally followed by one of the suffixes '2.
This notation is called the Singmaster notation. UDRLFB represents one of the 6 faces... | Here is a Python solution for generating a random Rubik's Cube scramble that meets the specified criteria:
```python
import random
def scramble():
moves = 'U D R L F B'.split()
last_move = ''
last_group = ''
scramble_moves = []
for _ in range(25):
while True:
move = random... | [
{
"from": "human",
"value": "Your task is to create a random sequence of moves, which can be used to scramble a Rubik's Cube. Such a scramble is made up of exactly 25 moves. Each move consist of of the letters UDRLFB optionally followed by one of the suffixes '2.\nThis notation is called the Singmaster nota... | codegolf |
Background
After applying the BWT (as seen in Burrows, Wheeler and Back) and the MTF (as seen in Move to the printable ASCII front), the bzip2 compressor applies a rather unique form of run-length encoding.
Definition
For the purpose of this challenge, we define the transformation BRLE as follows:
Given an input string... | Here's a Python solution that implements the BRLE transformation as specified in your challenge. The code reads an input string, checks if it contains curly brackets, and applies the appropriate transformation accordingly:
```python
def bijective_base2(n):
if n == 0: return ''
return bijective_base2(n // 2) + ... | [
{
"from": "human",
"value": "Background\nAfter applying the BWT (as seen in Burrows, Wheeler and Back) and the MTF (as seen in Move to the printable ASCII front), the bzip2 compressor applies a rather unique form of run-length encoding.\nDefinition\nFor the purpose of this challenge, we define the transform... | codegolf |
Just last night I was reading a book which had a chapter on the Partition Problem; the Partition Problem is basically about splitting a set of numbers into two smaller sets of equal size.
To visualize it, the book contained the following picture:
It shows how, given an input of k boxes, each with height n, you can cre... | To tackle the problem of partitioning a list of digits into N stacks such that the sum of each stack is equal, we can write a Python script. The following solution implements a straightforward backtracking approach to find possible partitions that meet the criteria.
Here is a concise implementation:
```python
import... | [
{
"from": "human",
"value": "Just last night I was reading a book which had a chapter on the Partition Problem; the Partition Problem is basically about splitting a set of numbers into two smaller sets of equal size.\nTo visualize it, the book contained the following picture:\n\nIt shows how, given an input... | codegolf |
Given two parameters lane pattern and road length, print an ASCII representation of the lane markings for Roads and Traffic Service to paint the roads.
Example input/output
Input: BTHMLRPHU, 21
I don't care if you take two parameters or concatenate the number onto the end of the string, it's unambiguous.
Input may be t... | Here's a Python solution that adheres to the requirements specified, providing an ASCII representation of the lane markings for a given lane pattern and road length:
```python
def road_markings(lanes, length):
width = len(lanes) * 6 + 2 + (lanes.count('M') * 2) # Calculate total width
patterns = {'B': ' B ', '... | [
{
"from": "human",
"value": "Given two parameters lane pattern and road length, print an ASCII representation of the lane markings for Roads and Traffic Service to paint the roads.\nExample input/output\nInput: BTHMLRPHU, 21\nI don't care if you take two parameters or concatenate the number onto the end of ... | codegolf |
Bonjour, PPCG ! Quelle heure est-il ? This means what time is it in French, for that is exactly what this challenge is about.
Telling time in French (at least formally) is a bit different from telling time in English. Telling the time starts out with Il est (It is). Then, you put the hour followed by heures (o'clock). ... | Here's a solution in Python that prints the current local time in French following the rules specified:
```python
import datetime
h = datetime.datetime.now().hour
m = datetime.datetime.now().minute
if h == 0: t="minuit"
elif h == 12: t="midi"
else: t=f"{h} heures" if h > 1 else "une heure"
if m == 0: t += ""
elif m ==... | [
{
"from": "human",
"value": "Bonjour, PPCG ! Quelle heure est-il ? This means what time is it in French, for that is exactly what this challenge is about.\nTelling time in French (at least formally) is a bit different from telling time in English. Telling the time starts out with Il est (It is). Then, you p... | codegolf |
The Setup
Suppose you're given n fuses, with 1 ≤ n ≤ 5, each of which is a meter long, and where each fuse has an associated burn rate of N meters per D hours.
A fuse can be lit at one or both ends, subsequently extinguished at one or both ends, relit, re-extinguished, etc., as many times as needed until the fuse is fu... | Here is a Python function that will determine if a given time `t` can be measured using a specified set of fuses with varying burn rates. The implementation utilizes a depth-first search approach to explore all possible burning configurations:
```python
from fractions import Fraction
from itertools import permutations... | [
{
"from": "human",
"value": "The Setup\nSuppose you're given n fuses, with 1 ≤ n ≤ 5, each of which is a meter long, and where each fuse has an associated burn rate of N meters per D hours.\nA fuse can be lit at one or both ends, subsequently extinguished at one or both ends, relit, re-extinguished, etc., a... | codegolf |
Two random numbers A and B have been generated to be either 1, 2, or 3
your job is to randomly pick a third number C that can also be 1, 2 or 3. But, C cannot equal A or B.
A can equal B.
If A = B, then C has only two numbers left it can be.
If A ≠ B, C has only one number it can be.
Assume A and B have already been c... | Your approach to selecting a random number \( C \) based on the values of \( A \) and \( B \) is correct in ensuring that \( C \) does not equal \( A \) or \( B \). However, there is a more efficient way to achieve this without a loop by using a simple list to hold the possible values for \( C \).
Here's a simplified ... | [
{
"from": "human",
"value": "Two random numbers A and B have been generated to be either 1, 2, or 3\nyour job is to randomly pick a third number C that can also be 1, 2 or 3. But, C cannot equal A or B.\n\nA can equal B.\nIf A = B, then C has only two numbers left it can be.\nIf A ≠ B, C has only one number... | codegolf |
Sequences
You are given four number sequences, numbered 1 through 4.
OEIS The location of 0's when the natural numbers are listed in binary. Here's an example of how to calculate the sequence:
0,1,10,11,100,101,110,111
^ ^ ^^ ^ ^
0 3 78 10 14
The start of the sequence goes like this: 0, 3, 7, ... | To solve the problem of finding the intersection of specified sequences based on user input, we will approach this step-by-step. We'll define the sequences as per the definitions provided, and then we will calculate the intersection based on the input. Here's how we can implement it in Python:
### Implementation Steps... | [
{
"from": "human",
"value": "Sequences\nYou are given four number sequences, numbered 1 through 4.\n\nOEIS The location of 0's when the natural numbers are listed in binary. Here's an example of how to calculate the sequence:\n 0,1,10,11,100,101,110,111\n ^ ^ ^^ ^ ^\n 0 3 78 10 14\n\nTh... | codegolf |
In this challenge, we will together create a word-search containing many programs in different languages.
I have started us off with a grid of 60-by-25 blanks (·), some of which are replaced by the characters of a Ruby program.
To answer, choose a language that was not yet used. Using your chosen language, write a prog... | # C, 25 characters added
```c
#include <stdio.h>
int main() {
char c;
scanf("%c", &c);
printf("%c", c);
return 0;
}
```
Here is the updated grid with my C program inserted diagonally:
```
··························
··························
··························
··························
·····... | [
{
"from": "human",
"value": "In this challenge, we will together create a word-search containing many programs in different languages.\nI have started us off with a grid of 60-by-25 blanks (·), some of which are replaced by the characters of a Ruby program.\nTo answer, choose a language that was not yet use... | codegolf |
Confidant Numbers
Let x be an integer of an arbitrary base, such that D is an array of its digits. x is a Confidant Number if, for all n between 1 and the length of D:
D[n+1] = D[n] + D[n-1] + ... + D[1] + n
Take, for example, the number 349 in base 10. If we label the indices for this number, we have the following.
... | Here's a Python solution for finding all Confidant Numbers for a given base, written in a concise manner suitable for code golf:
```python
def is_conf(x,b):
d=[int(c,36) for c in str(x)]
for n in range(1,len(d)):
if d[n]!=sum(d[:n])+n+1: return 0
return 1
def conf(base):
return [f"{x:b}" for x in range(base) if... | [
{
"from": "human",
"value": "Confidant Numbers\nLet x be an integer of an arbitrary base, such that D is an array of its digits. x is a Confidant Number if, for all n between 1 and the length of D:\nD[n+1] = D[n] + D[n-1] + ... + D[1] + n\n\n\nTake, for example, the number 349 in base 10. If we label the in... | codegolf |
(Note: I know that the VSEPR method fails sometimes, and that there are exceptional molecules. The challenge is about the molecules which conform.)
Most people who have taken an introductory chemistry course know about molecules, and (probably) the VSEPR theory of chemical bonding. Basically, the theory predicts the ... | Here is a Python solution that follows the rules of the challenge and computes the molecular geometry based on the given format:
```python
def shape(m):
A, *rest = m
X, N = rest[0], int(rest[1]) if len(rest) > 1 else 0
e_count = (6 if A == 'C' else 6 if A in 'S O' else 5) - (N - (X == 'F') - (X == 'Cl... | [
{
"from": "human",
"value": "(Note: I know that the VSEPR method fails sometimes, and that there are exceptional molecules. The challenge is about the molecules which conform.) \nMost people who have taken an introductory chemistry course know about molecules, and (probably) the VSEPR theory of chemical bo... | codegolf |
The program must output the letter that is paired the most. For example, if your program was given the following string:
"Sally's friend Bobby searched for seashells."
it must output L because "ll" occurs twice, which is more frequent than the other pair "bb".
Rules:
If more than one letter has 1st place for occurre... | Here is a Python code snippet that fulfills the requirements you outlined for counting letter pairs in a string:
```python
import re
from collections import Counter
s = "Sally's friend Bobby searched for seashells."
s = re.sub(r'[^a-zA-Z]', '', s.lower()) # Remove non-alphabetic characters and convert to lowercase
p... | [
{
"from": "human",
"value": "The program must output the letter that is paired the most. For example, if your program was given the following string:\n\"Sally's friend Bobby searched for seashells.\"\n\nit must output L because \"ll\" occurs twice, which is more frequent than the other pair \"bb\".\nRules: ... | codegolf |
mbomb007 asked us to make a self mutilating program. Its an interesting challenge, but I personally don't like to encourage my programs to be self-mutilating. I like to think that, at the heart of every program is a beautiful butterfly waiting to break out.
As such, for my first ever Code Golf challenge, I challenge ... | Here's a Python solution that meets the requirements of the challenge:
```python
import sys
# Read the input code (which should be its own source code)
code = sys.stdin.read()
# Define the special string for Batman
batman_trigger = "ZZZ"
# If the input starts with the specified trigger string
if code.startswith(bat... | [
{
"from": "human",
"value": "mbomb007 asked us to make a self mutilating program. Its an interesting challenge, but I personally don't like to encourage my programs to be self-mutilating. I like to think that, at the heart of every program is a beautiful butterfly waiting to break out.\nAs such, for my fi... | codegolf |
Your should write a program or function that takes a 4-character string as input and outputs a value indicating if the string is an English word or not. You are allowed to make mistakes in 15% of the provided testcases.
Input details:
Input is a 4-character string containing only the lowercase English letters (a-z).
Ou... | Here's a short Python function that checks whether a given 4-character string is an English word or not. The function uses a predefined set of 4-letter words for verification.
```python
def is_word(s):
words = {
'able', 'acid', 'acre', 'also', 'aunt', 'bark', 'bear', 'beef', 'bird', 'bore', 'bowl', 'call',... | [
{
"from": "human",
"value": "Your should write a program or function that takes a 4-character string as input and outputs a value indicating if the string is an English word or not. You are allowed to make mistakes in 15% of the provided testcases.\nInput details:\nInput is a 4-character string containing o... | codegolf |
Introduction
This challenge is inspired by Grime, my 2D pattern matching language.
Basically, you are given a "grammar" that describes two-dimensional grids of characters, and your job is to generate a grid according to the grammar.
In addition, the grid should be as small as possible in a certain weak sense.
Input
You... | To solve this problem, we can use a stack-based approach to handle the parsing of the input string according to the specified grammar. The key idea is to construct grids of characters based on the operations defined by the symbols (`|` for horizontal concatenation and `-` for vertical concatenation) and to ensure that ... | [
{
"from": "human",
"value": "Introduction\nThis challenge is inspired by Grime, my 2D pattern matching language.\nBasically, you are given a \"grammar\" that describes two-dimensional grids of characters, and your job is to generate a grid according to the grammar.\nIn addition, the grid should be as small ... | codegolf |
Inspired by this question earlier today, I'd like to see interesting ways various programming languages can turn a numpad into probabilities. Commonly, tile-based games will allow you to use a numpad to move in any direction based on where your character currently is. When making an AI for these games, Math.random() * ... | Certainly! Below is a Python function that generates movement probabilities based on the provided input position on a numpad. The function outputs the probabilities in the specified format.
```python
def generate_probs(pos):
p = [50, 40, 30, 20, 10]
grid = {7: [p[3], p[2], p[3]],
8: [p[2], 0, p[2]]... | [
{
"from": "human",
"value": "Inspired by this question earlier today, I'd like to see interesting ways various programming languages can turn a numpad into probabilities. Commonly, tile-based games will allow you to use a numpad to move in any direction based on where your character currently is. When makin... | codegolf |
We've been twice challenged to make 'error quines' (see Make an error quine! and Make a slow error quine maker!), so why don't we try the opposite?
Instructions
Write a "program" that, when run, produces an error.
Copy the error message into a new program, and run it.
Repeat Step 2 until the program runs without produ... | Let's create a simple sequence of programs that generates errors and gradually resolves them, following the rules provided.
### Step 1: Initial Program
**Initial Program (Python):**
```python
1/0
```
This will produce a `ZeroDivisionError`.
### Step 2: Capture the Error Message
The error message will look something... | [
{
"from": "human",
"value": "We've been twice challenged to make 'error quines' (see Make an error quine! and Make a slow error quine maker!), so why don't we try the opposite?\nInstructions\n\nWrite a \"program\" that, when run, produces an error.\nCopy the error message into a new program, and run it.\nRe... | codegolf |
Challenge
Find the smallest cover of bases (e.g., moduli) whose sets of quadratic residue can be tested via table-lookup to definitively determine whether or not a given non-negative integer n is a perfect square. The bases must all be less than or equal to the square root of the maximum value of n.
The answer with the... | To tackle the challenge of finding the smallest cover of bases (moduli) that can be used to definitively determine if a non-negative integer \( n \) is a perfect square, we will focus on different categories of integers: 8-bit values, 16-bit values, 32-bit values, and 64-bit values. The goal is to provide a minimal and... | [
{
"from": "human",
"value": "Challenge\nFind the smallest cover of bases (e.g., moduli) whose sets of quadratic residue can be tested via table-lookup to definitively determine whether or not a given non-negative integer n is a perfect square. The bases must all be less than or equal to the square root of t... | codegolf |
Introduction
The Dragon's Curve is a fractal curve that notably appears on section title pages of the Jurassic Park novel.
It can very simply be described as a process of folding a paper strip, as explained in the Wikipedia article about this curve.
The first few iterations of the generation of this curve look like thi... | Here's a Python solution to generate the ASCII representation of the Dragon's Curve fractal, which is compactly written to minimize byte count:
```python
def dragon_curve(n):
s = ["_"]
for _ in range(n):
s = s + ['|'] + [' ' for _ in range(len(s) - 1)] + [s[i] for i in reversed(range(len(s)))]
l = ... | [
{
"from": "human",
"value": "Introduction\nThe Dragon's Curve is a fractal curve that notably appears on section title pages of the Jurassic Park novel.\nIt can very simply be described as a process of folding a paper strip, as explained in the Wikipedia article about this curve.\nThe first few iterations o... | codegolf |
Shrink each word in a string of group of strings to single letters delineated by spaces or punctuation.
Example
I'm a little teapot, short and stout. Here is my handle, here is my spout. When I get all steamed up - hear me shout! Tip me over and pour me out.
becomes
I' a l t, s a s. H i m h, h i m s. W I g a s u -... | Here's a compact Python solution to shrink each word in a string to its first letter while preserving punctuation and ensuring that multiple spaces are reduced to a single space:
```python
import re
def shrink_text(text):
return ' '.join(re.sub(r'\S', lambda x: x.group()[0], word) for word in re.split(r'(\s+)', t... | [
{
"from": "human",
"value": "Shrink each word in a string of group of strings to single letters delineated by spaces or punctuation.\nExample\nI'm a little teapot, short and stout. Here is my handle, here is my spout. When I get all steamed up - hear me shout! Tip me over and pour me out. \n\nbecomes\nI'... | codegolf |
Let's get right in to it.
Your challenge is to make a program that does these things depending on its input:
If the input is a number, output "Prime" if the number is a prime number and "Not prime" if the number isn't a prime number. You can assume the number is > 1.
If the input is two numbers, output every single p... | Certainly! Below is a Python program that meets the challenge requirements you specified. The first generation of the program does the following based on the input:
1. If the input is a single number, it checks if it is prime.
2. If the input consists of two numbers, it lists all prime numbers in the range.
3. If ther... | [
{
"from": "human",
"value": "Let's get right in to it.\nYour challenge is to make a program that does these things depending on its input:\n\nIf the input is a number, output \"Prime\" if the number is a prime number and \"Not prime\" if the number isn't a prime number. You can assume the number is > 1.\n\n... | codegolf |
In Python it is often necessary to use str.replace(a,b), however .replace is rather long and feels unnecessary. So is there a shorter alternative to str.replace.
Alternatively is there a similar trick to how you can use r=range for golfing for str.replace?
Example code for golfing
m=input()
f="hello"
print m.replace('t... | In Python, if you're looking for a shorter alternative to `str.replace`, you can create a simple alias for it to reduce the length of your code. Here's how you can do it:
```python
r = str.replace
```
Then, you can use `r` instead of `str.replace` in your code.
Here's your example modified to use this alias:
```pyt... | [
{
"from": "human",
"value": "In Python it is often necessary to use str.replace(a,b), however .replace is rather long and feels unnecessary. So is there a shorter alternative to str.replace.\nAlternatively is there a similar trick to how you can use r=range for golfing for str.replace?\nExample code for gol... | codegolf |
This is a very crude text encoding algorithm I came up with the other day. It won't work if the text has more than 256 different characters in it – but it does support Unicode, at least in my Python implementation.
The algorithm:
Find all the unique characters in the text. Let's call this list, unique-chars.
Break the... | This is a fascinating exercise in text compression and encoding! Below, I've provided a Python implementation of your algorithm. I will also outline a general plan for how you might implement this in C or another language.
### Python Implementation
```python
import time
from collections import Counter
import re
def... | [
{
"from": "human",
"value": "This is a very crude text encoding algorithm I came up with the other day. It won't work if the text has more than 256 different characters in it – but it does support Unicode, at least in my Python implementation.\nThe algorithm:\n\nFind all the unique characters in the text. L... | codegolf |
Write a function f(a,b,c) that calculates a^b (mod c) in less than 10 seconds.
a, b < 10^100
c < 10000.
examples:
f(10^50, 10^50, 54123) = 46555
f(5^99, 10^99, 777) = 1
| To efficiently compute \( a^b \mod c \) for very large values of \( a \) and \( b \), we can utilize modular exponentiation. This method allows us to handle the large numbers without directly computing \( a^b \), which would be infeasible for values up to \( 10^{100} \).
We'll use Python for this task, which has built... | [
{
"from": "human",
"value": "Write a function f(a,b,c) that calculates a^b (mod c) in less than 10 seconds.\n\na, b < 10^100\nc < 10000.\n\nexamples:\nf(10^50, 10^50, 54123) = 46555\nf(5^99, 10^99, 777) = 1\n\n"
},
{
"from": "gpt",
"value": "To efficiently compute \\( a^b \\mod c \\) for very la... | codegolf |
Background
I want to build a fence.
For that, I have collected a bunch of poles, and stuck them to the ground.
I have also collected lots of boards that I'll nail to the poles to make the actual fence.
I tend to get carried away when building stuff, and most likely I'll just keep nailing the boards to the poles until t... | To solve the problem of counting the number of maximal arrangements of a fence using the given poles represented by 2D coordinates, we need to follow a systematic approach. This involves finding all the possible connections (horizontal and vertical boards) between the poles, ensuring that they do not cross or have othe... | [
{
"from": "human",
"value": "Background\nI want to build a fence.\nFor that, I have collected a bunch of poles, and stuck them to the ground.\nI have also collected lots of boards that I'll nail to the poles to make the actual fence.\nI tend to get carried away when building stuff, and most likely I'll just... | codegolf |
Welcome Back to the Future's fans and enthusiastic codegolfers.
Let's begin with this simple statement : Marty arrives in 2015 in one month (On october the 21st !). Therefore I propose we use the time remaining to pay him and the saga the best homage we can.
Task
Marty left for 2015 on October the 26, 1985. Thus, you ... | Here's a creative homage to the "Back to the Future" franchise through three code snippets in Python. The snippets will produce ASCII art representations, and we'll incorporate the DeLorean as the visual representation for this task.
### Snippet Length 10
```python
print("BTTF") # A reference to Back to the Future
``... | [
{
"from": "human",
"value": "Welcome Back to the Future's fans and enthusiastic codegolfers. \nLet's begin with this simple statement : Marty arrives in 2015 in one month (On october the 21st !). Therefore I propose we use the time remaining to pay him and the saga the best homage we can.\nTask\nMarty left ... | codegolf |
Your task is to improvise a hardware random-number generator with whatever hardware you have lieing around.
Challenge
Write a program with the following properties:
It prints either 0 or 1 (and nothing else).
The output depends on a physical process and not just the internal state of the computer.
There is no relation... | Here's a solution for a hardware-based random number generator using common consumer-grade hardware: a microphone and a sound source, such as a radio or a TV.
### Concept
The randomness comes from ambient noise or static picked up by the microphone, which can be affected by countless factors including electromagnetic... | [
{
"from": "human",
"value": "Your task is to improvise a hardware random-number generator with whatever hardware you have lieing around.\nChallenge\nWrite a program with the following properties:\n\nIt prints either 0 or 1 (and nothing else).\nThe output depends on a physical process and not just the intern... | codegolf |
Your task is to draw the mandelbrot set in ascii. It should look something like
The complex number c lies in the mandelbrot set, when the sequence z(n+1) = z(n)^2 + c, z(0) = 0 remains bounded.
For the purpose of this challenge you can consider the sequence bounded for c if |z(32)| < 2.
Plot the mandelbrot set on the ... | Certainly! Below is an ASCII representation of the Mandelbrot set. The following Python code generates the Mandelbrot set in ASCII art with the specified resolution of 40x30. The characters used are minimal and the size of the plot matches the required boundaries.
```python
def mandelbrot_set(xmin, xmax, ymin, ymax, w... | [
{
"from": "human",
"value": "Your task is to draw the mandelbrot set in ascii. It should look something like\n\nThe complex number c lies in the mandelbrot set, when the sequence z(n+1) = z(n)^2 + c, z(0) = 0 remains bounded.\nFor the purpose of this challenge you can consider the sequence bounded for c if ... | codegolf |
Rövarspråket
Rövarspråket is a word game played by Swedish children, from the books about Kalle Blomkvist by Astrid Lindgren.
The basic rules are as follows (from Wikipedia):
Every consonant (spelling matters, not pronunciation) is doubled, and
an o is inserted in-between.
Vowels are left intact.
A few examples:
"h... | Here's a concise Python function that converts a string into Rövarspråket:
```python
def rovarspraket(s):
return ''.join(c + 'o' + c if c.isalpha() and c not in 'aeiouAEIOU' else c for c in s)
# Example usage:
input_string = "hello"
print(rovarspraket(input_string)) # Output: "hohelollolo"
```
### Explanation:
... | [
{
"from": "human",
"value": "Rövarspråket\nRövarspråket is a word game played by Swedish children, from the books about Kalle Blomkvist by Astrid Lindgren.\nThe basic rules are as follows (from Wikipedia):\n\nEvery consonant (spelling matters, not pronunciation) is doubled, and\nan o is inserted in-between.... | codegolf |
Background
This is the first part of a 3-hole golf course on text processing.
The over-arching idea is that if you take an input text and pipe it through the solutions to all three challenges (with a small amount of glue code), it will spit out a beautifully formatted paragraph.
In this first challenge, your task is a ... | Here's a solution in Python that implements the specified text hyphenation using the given hyphenation patterns. The program reads two inputs, processes the first text to replace the applicable words with their hyphenated versions, and maintains the original case of the words.
```python
import re
def hyphenate_text(t... | [
{
"from": "human",
"value": "Background\nThis is the first part of a 3-hole golf course on text processing.\nThe over-arching idea is that if you take an input text and pipe it through the solutions to all three challenges (with a small amount of glue code), it will spit out a beautifully formatted paragrap... | codegolf |
Given a file named hello_world that contains 2-100 bytes of printable ASCII, create a Turing-complete language in which hello_world is a valid program that prints "Hello World!". The output should be two files: a compiler or interpreter, and a text file with the language spec.
Rules
Shortest code wins. Length of (an... | Creating a Turing-complete language where the input is a file named `hello_world` that contains 2-100 bytes of printable ASCII and outputs "Hello World!" can be achieved through the following steps:
1. **Define the Language Specification**: We will create a simple, interpretable language that allows for the output of ... | [
{
"from": "human",
"value": "Given a file named hello_world that contains 2-100 bytes of printable ASCII, create a Turing-complete language in which hello_world is a valid program that prints \"Hello World!\". The output should be two files: a compiler or interpreter, and a text file with the language spec... | codegolf |
Did you know that the Euclidean algorithm is capable of generating traditional musical rhythms? We'll see how this works by describing a similar, but slightly different algorithm to that in the paper.
Pick a positive integer n, the total number of beats, and a positive integer k, the number of beats which are sounded (... | Here is a concise Python solution to generate the rhythm pattern using the provided algorithm. This implementation focuses on minimal bytes while ensuring clarity in achieving the desired output:
```python
n,k=map(int,input().split())
if n<k:n,k=k,n
b=k//(k+1)*'x.'+k%k*'x'
print(b[:n])
```
### Explanation:
- **Input ... | [
{
"from": "human",
"value": "Did you know that the Euclidean algorithm is capable of generating traditional musical rhythms? We'll see how this works by describing a similar, but slightly different algorithm to that in the paper.\nPick a positive integer n, the total number of beats, and a positive integer ... | codegolf |
As the band's roadie, you have to pack the truck. Your program will place the packages so that they fit in the smallest height.
A badly packed truck
Rules
Packages may be rotated through multiples of 90 degrees. Packages may touch but must not overlap.
The output is the repacked image (to file or stdout). Your program... | Creating a program to efficiently pack packages into a truck to minimize height while allowing for rotation is a challenging problem known as the "2D bin packing" problem, which is NP-hard. Below is a conceptual overview of how one could approach the implementation of such a program, alongside some pseudo-code to get y... | [
{
"from": "human",
"value": "As the band's roadie, you have to pack the truck. Your program will place the packages so that they fit in the smallest height.\nA badly packed truck\n\nRules\nPackages may be rotated through multiples of 90 degrees. Packages may touch but must not overlap.\nThe output is the re... | codegolf |
Strings with Context
For the purposes of this challenge, a string with context is a triple of strings, called the left context, the data part, and the right context. It represents a substring of a longer string. We use the vertical pipe | as a separator, so an example of a string with context is cod|e-go|lf, where the ... | Here's a Python function that implements the described functionality for concatenating two strings with context. The function checks for matching characters in the alignment before concatenating the strings and returns `None` if the concatenation is not possible due to mismatches.
```python
def concat_with_context(str... | [
{
"from": "human",
"value": "Strings with Context\nFor the purposes of this challenge, a string with context is a triple of strings, called the left context, the data part, and the right context. It represents a substring of a longer string. We use the vertical pipe | as a separator, so an example of a stri... | codegolf |
Puzzle
There are some mirrors located throughout a grid. A ray of light enters the grid from some position. It travels through the grid in a straight line trying to escape. On encountering with a mirror it changes its course by 90 degrees. This continues to happen until it breaks free from the maze. The challenge is si... | Here's a solution for the puzzle you've described. The code simulates the behavior of a light ray traveling through a grid that may contain mirrors. I'll implement a basic version of the grid with standard mirrors and demonstrate how the light ray moves through the grid until it exits.
### Implementation
```python
cl... | [
{
"from": "human",
"value": "Puzzle\nThere are some mirrors located throughout a grid. A ray of light enters the grid from some position. It travels through the grid in a straight line trying to escape. On encountering with a mirror it changes its course by 90 degrees. This continues to happen until it brea... | codegolf |
In this challenge, you have to implement a basic spell checker and autocorrector. Your program will use the first input as a source for a dictionary of words, and will use that to autocorrect the second input, finding a close match to some incorrectly spelt words, outputting the result
Specifications
You will receive ... | Here's a Python implementation of a basic spell checker and autocorrector that follows the specifications you've provided. This code takes two inputs separated by a pipe (`|`), processes them, and outputs the corrected words.
```python
def d_lev(s1, s2):
return len(s1) != len(s2) and any((s1 == s2[:i] + s2[i+1:] ... | [
{
"from": "human",
"value": "In this challenge, you have to implement a basic spell checker and autocorrector. Your program will use the first input as a source for a dictionary of words, and will use that to autocorrect the second input, finding a close match to some incorrectly spelt words, outputting the... | codegolf |
There are quite a large number of prime generating functions. Pretty much all of them are constructed and are based on the sieve of Eratosthenes, the Möbius function or the Wilson's theorem and are generally infeasible to compute in practice. But there are also generators, that have a very easy structure and were found... | # Python, 95 bytes
```python
def f(n):
r,a,c=[],7,[0]*3
for i in range(1,n+1):
g=0
while g<=1: g+=a[i-1]%c[g]
a.append(a[-1]+g)
if g>1: r.append(g)
print(r)
f(int(input()))
```
This code defines a function `f` that computes the first `n` elements of the sequence A137613, which omits the 1's from the diff... | [
{
"from": "human",
"value": "There are quite a large number of prime generating functions. Pretty much all of them are constructed and are based on the sieve of Eratosthenes, the Möbius function or the Wilson's theorem and are generally infeasible to compute in practice. But there are also generators, that ... | codegolf |
The challenge
Insert one string into another at a given index.
Given a string input in the format:
#:Pattern:Word
Where:
# is a positive integer marking the index
Pattern is the string (whose length is undefined) to insert
: is a delimiter
Word is the string to insert into.
Assume that a : will not be used in either... | To solve the challenge of inserting one string into another at a given index, you can follow these steps in your code:
1. Parse the input string to extract the index, the pattern to insert, and the target word.
2. Validate the index to ensure it is within the bounds of the target word.
3. If the index is valid, perfor... | [
{
"from": "human",
"value": "The challenge\nInsert one string into another at a given index.\nGiven a string input in the format:\n#:Pattern:Word\n\nWhere:\n\n# is a positive integer marking the index\nPattern is the string (whose length is undefined) to insert\n: is a delimiter\nWord is the string to inser... | codegolf |
This challenge was posted on the DailyProgrammer subreddit, and I figured it would be a great candidate for a code golf challenge. Determining if a letter balances is based on its distance from the point of balance, and the letter's value. The value of a letter can be determined by either taking its one-indexed positio... | Here's a Python solution to the balancing word problem that attempts to be as concise as possible, fitting the code-golf requirements:
```python
def balance(w):
for i in range(len(w)):
l = sum((j-i) * (ord(w[j]) - 64) for j in range(i))
r = sum((j-i-1) * (ord(w[j]) - 64) for j in range(i + 1, len(w... | [
{
"from": "human",
"value": "This challenge was posted on the DailyProgrammer subreddit, and I figured it would be a great candidate for a code golf challenge. Determining if a letter balances is based on its distance from the point of balance, and the letter's value. The value of a letter can be determined... | codegolf |
Once upon a time long long ago... when there was no money or stocks yet, people were trading sheep. Even before (but close to) the invention of abacus, the great-grandfather of Warren Buffet decided it was hard to keep track of sheep. He wanted to collect all his belongings and clear all his debt, so that he could inve... | To solve the problem efficiently, we need to calculate the number of valid orderings of 999 people, where the first 250 are givers (giving away their sheep) and the remaining 749 are collectors (collecting sheep).
This problem can be framed as a combinatorial problem where we need to ensure that at any point in the o... | [
{
"from": "human",
"value": "Once upon a time long long ago... when there was no money or stocks yet, people were trading sheep. Even before (but close to) the invention of abacus, the great-grandfather of Warren Buffet decided it was hard to keep track of sheep. He wanted to collect all his belongings and ... | codegolf |
In this challenge, you get to create a language. Although you have to provide code in other languages, you will only be rated based on the language. Here are the requirements.
You must invent a programming language that is Turing complete.
You will choose a real (as in existed before this question did) language. It mu... | Let's create a new Turing-complete programming language called **"MiniLang"**. It will be a minimalist, imperative programming language, focused on a small set of commands and operators.
### Language Design: MiniLang
#### Syntax Overview
- **Variables:** Single-character identifiers (a-z)
- **Integers:** Decimal inte... | [
{
"from": "human",
"value": "In this challenge, you get to create a language. Although you have to provide code in other languages, you will only be rated based on the language. Here are the requirements.\n\nYou must invent a programming language that is Turing complete.\nYou will choose a real (as in exist... | codegolf |
Create a program which can rearrange pixels in image so it can't be recognized.
However your program should able to convert it back to original image.
You can write two functions - for encoding and decoding, however one function which applied repeatedly gives original image (example in math - f(x) = 1 - x) is a bonus.
... | To achieve the goal of rearranging the pixels of an image such that it cannot be easily recognized, but still allows for recovering the original image, we can implement a simple pixel permutation approach. This technique will involve shuffling the pixels based on a deterministic sequence generated by a key (seed).
He... | [
{
"from": "human",
"value": "Create a program which can rearrange pixels in image so it can't be recognized.\nHowever your program should able to convert it back to original image.\nYou can write two functions - for encoding and decoding, however one function which applied repeatedly gives original image (e... | codegolf |
Background
In this challenge, a base-b representation of an integer n is an expression of n as a sum of powers of b, where each term occurs at most b-1 times. For example, the base-4 representation of 2015 is
4^5 + 3*4^4 + 3*4^3 + 4^2 + 3*4 + 3
Now, the hereditary base-b representation of n is obtained by converting t... | To solve the problem of computing the hereditary base change \( H(b, c, n) \) based on the provided definitions and examples, we need to follow these steps:
1. **Convert the integer \( n \) into its base-b representation.**
2. **Recursively convert the exponents into their base-b representation (this defines the hered... | [
{
"from": "human",
"value": "Background\nIn this challenge, a base-b representation of an integer n is an expression of n as a sum of powers of b, where each term occurs at most b-1 times. For example, the base-4 representation of 2015 is\n4^5 + 3*4^4 + 3*4^3 + 4^2 + 3*4 + 3\n\nNow, the hereditary base-b re... | codegolf |
The challenge involves printing the difference between ICMP originate and receive timestamps.
The idea is being able to determine which asymmetric internet path is responsible for packet delay.
One can use hping with --icmp-ts option to gain the raw data on ICMP_TSTAMP. The task is complicated by the fact that hping d... | Here's a compact shell snippet that accomplishes the task of printing the differences between ICMP originate and receive timestamps as specified. It leverages `unbuffer`, `hping`, and `perl` to process the output. Make sure to replace `www.internet2.edu` with the desired domain when running the snippet.
```sh
alias hp... | [
{
"from": "human",
"value": "The challenge involves printing the difference between ICMP originate and receive timestamps.\nThe idea is being able to determine which asymmetric internet path is responsible for packet delay.\nOne can use hping with --icmp-ts option to gain the raw data on ICMP_TSTAMP. The t... | codegolf |
I'm a bit of a romantic, I love taking my wife out to see the sunrises and sunsets in the place we are located. For the sake of this exercise let's say I don't have code that can tell me the time of either sunset or sunrise for whatever date, latitude and longitude I would happen to be in.
Your task, coders, is to gene... | To achieve this task in a compact form while considering your requirements, we can leverage the `astral` library, which can calculate sunrise and sunset times based on latitude, longitude, and date. Additionally, we will utilize the `pytz` library to manage time zones.
Here is a small Python script that meets your cr... | [
{
"from": "human",
"value": "I'm a bit of a romantic, I love taking my wife out to see the sunrises and sunsets in the place we are located. For the sake of this exercise let's say I don't have code that can tell me the time of either sunset or sunrise for whatever date, latitude and longitude I would happe... | codegolf |
The Puzzle
You have to write a program or function p(n) that returns the square of what is entered into it and you may assume that the input is a non-negative integer. Put in simpler terms, return n2.
Rules
You are not allowed to use * or / (or any other power or square root operator, such as POW or SQRT, if your lang... | Here's a creative approach to implement the function `p(n)` that computes the square of a non-negative integer `n` without using multiplication, division, loops, or recursion. I will demonstrate this in Python, leveraging its features creatively.
In Python, we can make use of string manipulation and the `len` function... | [
{
"from": "human",
"value": "The Puzzle\nYou have to write a program or function p(n) that returns the square of what is entered into it and you may assume that the input is a non-negative integer. Put in simpler terms, return n2.\nRules\n\nYou are not allowed to use * or / (or any other power or square roo... | codegolf |
This challenge will behave more or less like a traditional code-golf. The only difference is that instead of scoring answers by their number of characters or bytes, users will assign
weights to different characters in the comments and the program with the lowest cumulative weight will win.
Challenge
Your task is to wri... | Here's a Python solution to generate a diamond shape based on the given string input, formatted as specified in the challenge:
```python
s=input()
l=len(s)
d=2*l-1
a=[" "*(l-1)+s[i:i+1]+(" "*(i-1)+s[i-1:i]+s[i+1:i+2]*i if i>0 else "")+(s[i-1:i]+s[i+1:i+2]*i if i>0 else "")+" "*(l-1) for i in range(l)]
print("\n".join(... | [
{
"from": "human",
"value": "This challenge will behave more or less like a traditional code-golf. The only difference is that instead of scoring answers by their number of characters or bytes, users will assign\nweights to different characters in the comments and the program with the lowest cumulative weig... | codegolf |
We define whitespace to be any of the three characters, tab (0x09), newline (0x0A) or space (0x20).
For this challenge, you're to write two programs or functions in the same programming language, which perform the following tasks:
Count the whitespace characters in a given string. For instance, the input
123 -_- a... | # Python 3, 73 bytes
```python
def c(s):return sum(c in'\t\n 'for c in s)
def s(s):return[s for s in s.split()if s]
```
### Explanation:
- The first function `c(s)` counts the whitespace characters by iterating through the string and checking if each character is a tab, newline, or space.
- The second function `s(s)... | [
{
"from": "human",
"value": "We define whitespace to be any of the three characters, tab (0x09), newline (0x0A) or space (0x20).\nFor this challenge, you're to write two programs or functions in the same programming language, which perform the following tasks:\n\nCount the whitespace characters in a given s... | codegolf |
There's something wrong with your keyboard. The Shift key has a mind of its own. Every time you type a character you have no idea whether it will come out shifted or not (though it is 50-50). Besides the standard character keys, nothing on the keyboard is functional. There is no mouse or other means of input.
Somehow y... | To tackle this problem, the goal is to craft a sequence of key presses that is likely to produce the desired output: "Dear Computer, please stop giving me shift!". Given the malfunctioning Shift key, every character typed has a chance of appearing either in its unshifted or shifted form, leading to a variety of possibl... | [
{
"from": "human",
"value": "There's something wrong with your keyboard. The Shift key has a mind of its own. Every time you type a character you have no idea whether it will come out shifted or not (though it is 50-50). Besides the standard character keys, nothing on the keyboard is functional. There is no... | codegolf |
For those of you who have seen the popular daytime TV show Countdown, you will know that the contestants are given 9 randomly selected letters and must then find the longest word they can in 30 seconds.
Your challenge is, given a string of 9 letters, to find the longest word that is an anagram of the largest subset of ... | Here's a Python solution that implements the specified requirements using the `collections` library for easy counting of letters and a simple approach to checking the dictionary. The program reads a dictionary file, processes the input string of 9 letters, and finds the longest valid words.
```python
from collections ... | [
{
"from": "human",
"value": "For those of you who have seen the popular daytime TV show Countdown, you will know that the contestants are given 9 randomly selected letters and must then find the longest word they can in 30 seconds.\nYour challenge is, given a string of 9 letters, to find the longest word th... | codegolf |
Given two strings, a parent string and a query string respectively, your task is to determine how many times the query string, or an anagram of the query string; appears in the parent string, in a case-sensitive search.
Examples of Behaviour
Input 1
AdnBndAndBdaBn
dAn
Output 1
4
Explanation
The substrings are highlig... | Here's a solution to the problem described above, written in Python. I'll provide both a golfed version and a non-golfed version of the code.
### Golfed Version
```python
def f(p,q):c=0;n=len(q);d=sorted(q);[c:=(c+1)if sorted(p[i:i+n])==d else c for i in range(len(p)-n+1)];return c
```
### Non-Golfed Version
```pytho... | [
{
"from": "human",
"value": "Given two strings, a parent string and a query string respectively, your task is to determine how many times the query string, or an anagram of the query string; appears in the parent string, in a case-sensitive search.\nExamples of Behaviour\nInput 1\nAdnBndAndBdaBn\ndAn\n\nOut... | codegolf |
In this challenge, the goal is to recreate the On-Line Encyclopedia of Integer Sequences one sequence at a time. Similar to the Evolution of Hello World, each answer depends on a previous answer.
Over time, this challenge will create a "family tree" of the OEIS sequences. It is simple to add on to this tree.
Find a ... | To find a sequence in the OEIS that starts with the same numbers as the previous answer's sequence, let's start by identifying the answer you are referencing. Since the answer you want to extend has the first three terms "1, 4, 20", we look for sequences in OEIS starting with these numbers.
One such sequence is A00146... | [
{
"from": "human",
"value": "In this challenge, the goal is to recreate the On-Line Encyclopedia of Integer Sequences one sequence at a time. Similar to the Evolution of Hello World, each answer depends on a previous answer.\nOver time, this challenge will create a \"family tree\" of the OEIS sequences. I... | codegolf |
There is a nice way to perform long multiplication for two integers without having to do anything but counting, which occasional gets shared around the internet. You write the digits of each number as a bunch of slanted lines, with the two numbers at a 90 degree angle. Then you can simply count the intersections in the... | Here's a solution to create ASCII art diagrams for long multiplication of two integers using a concise and effective approach. This Python function takes two integers as input and generates the desired output.
```python
def long_mult_diagram(a, b):
a = str(a)[::-1] # Reverse digits for easier handling
b = str... | [
{
"from": "human",
"value": "There is a nice way to perform long multiplication for two integers without having to do anything but counting, which occasional gets shared around the internet. You write the digits of each number as a bunch of slanted lines, with the two numbers at a 90 degree angle. Then you ... | codegolf |
When it comes to eating candy, I hold myself to higher standards than the typical layperson. There is a delicate balance between "mixing it up" and "saving the best for last."
In this challenge, you will be given a string of characters in which each character represents a piece of candy. Different characters (case-se... | Here's a Python solution to the candy consumption challenge that adheres to the outlined rules while aiming for brevity:
```python
def organize_candy(s):
from collections import Counter
c=Counter(s)
r=[x*c[x] for x in sorted(c,key=lambda x:(-c[x],x))]
return ''.join(''.join(r[i][::(len(r)-1)//len(r[i])... | [
{
"from": "human",
"value": "When it comes to eating candy, I hold myself to higher standards than the typical layperson. There is a delicate balance between \"mixing it up\" and \"saving the best for last.\"\nIn this challenge, you will be given a string of characters in which each character represents a ... | codegolf |
I recently moved to an apartment overlooking the inner ring-road of town, and every day, a beautiful scene unfolds. The traffic lights are apparently so confusing (mostly because the Dutch are used to complex intersections, and this one is too simple for them to wrap their heads around), that the intersection invariabl... | To solve the Rush Hour challenge you've described, we can implement a simulation algorithm that processes the input grid and generates the necessary sequence of moves for the red car to exit the grid. Below is a Python implementation that tackles the problem:
```python
from collections import deque
# Directions for m... | [
{
"from": "human",
"value": "I recently moved to an apartment overlooking the inner ring-road of town, and every day, a beautiful scene unfolds. The traffic lights are apparently so confusing (mostly because the Dutch are used to complex intersections, and this one is too simple for them to wrap their heads... | codegolf |
The challenge is to make a program that sorts a list of words, only that the words need to be in the order of a random given alphabet.
Your program will accept a string of comma-separated words and a new alphabet.
Your program will output every word in the same way in the new sorted order.
Example:
Input:
home,oval,cat... | Your challenge is a great idea! It presents an interesting problem of sorting words based on a custom alphabet, which could be an engaging exercise for participants. Here are a few suggestions to improve the clarity and completeness of the challenge:
1. **Input Specification**: Clearly specify the format of the input.... | [
{
"from": "human",
"value": "The challenge is to make a program that sorts a list of words, only that the words need to be in the order of a random given alphabet.\nYour program will accept a string of comma-separated words and a new alphabet.\nYour program will output every word in the same way in the new ... | codegolf |
You a sequence of numbers like this one given to you as a string:
"1 2 3 4 8 11 19 33 59 154 196 260"
Create a program (any language) that calculates the smallest outcome you can't get by adding two of those numbers together.
The numbers given must be integers, and are always positive.
You can only use each number once... | Sure! Below is a Python program that calculates the smallest positive integer that cannot be formed by adding any two different numbers from a given sequence of integers. The program first parses the input string into a list of integers, then generates all possible sums of pairs of these integers and finally determines... | [
{
"from": "human",
"value": "You a sequence of numbers like this one given to you as a string:\n\"1 2 3 4 8 11 19 33 59 154 196 260\"\nCreate a program (any language) that calculates the smallest outcome you can't get by adding two of those numbers together.\nThe numbers given must be integers, and are alwa... | codegolf |
Write a program that prompts the user for an even integer greater than 2.
Given Goldbach’s conjecture that every even integer greater than 2 can
be expressed as the sum of two primes, print out two prime numbers which, when
added together, provide the requested even number.
Edit: the program only has to print A PAIR ... | Here's a Python program that prompts the user for an even integer greater than 2 and then finds and prints a pair of prime numbers that add up to that even integer, in accordance with Goldbach’s conjecture:
```python
def is_prime(n):
"""Check if a number is prime."""
if n <= 1:
return False
for i i... | [
{
"from": "human",
"value": "Write a program that prompts the user for an even integer greater than 2.\nGiven Goldbach’s conjecture that every even integer greater than 2 can \nbe expressed as the sum of two primes, print out two prime numbers which, when \nadded together, provide the requested even number.... | codegolf |
Some characters are more holy than others. Using as few unholy letters as possible, display the statement above.
Challenge
Write a full program to print Holy Hole In A Donut, Batman! to STDOUT or closest alternative. If you can compress the input to reduce your score, go wild :)
Input
None
Output
Holy Hole In A Donut, ... | Here's a Python program that prints the desired output "Holy Hole In A Donut, Batman!" while minimizing the use of unholy characters. I’ll provide an implementation that carefully selects characters based on their "holiness" score.
```python
# The phrase we need to output
output = "Holy Hole In A Donut, Batman!"
# Pr... | [
{
"from": "human",
"value": "Some characters are more holy than others. Using as few unholy letters as possible, display the statement above.\nChallenge\nWrite a full program to print Holy Hole In A Donut, Batman! to STDOUT or closest alternative. If you can compress the input to reduce your score, go wild ... | codegolf |
Hole #1
Joe the snake is hungry.
He eats pictures, one pixel at a time.
He really likes bright pixels.
The Challenge
Program Joe to eat the most bright pixels he can find, given that he can only move up, down, left or right.
Specifications
Joe must start at the upper left pixel of the image.
Joe can only move horizont... | To tackle this challenge, we can implement a pathfinding algorithm that allows Joe the snake to maximize the total brightness of the pixels he consumes from the image. Let's break down the steps necessary to achieve this:
### Step 1: Load the Image
We will use a library like PIL (Python Imaging Library) to load and ma... | [
{
"from": "human",
"value": "Hole #1\nJoe the snake is hungry.\nHe eats pictures, one pixel at a time.\nHe really likes bright pixels.\nThe Challenge\nProgram Joe to eat the most bright pixels he can find, given that he can only move up, down, left or right.\nSpecifications\n\nJoe must start at the upper le... | codegolf |
In chaos theory, the horseshoe map is an example of how chaos arises in a simple process of folding and squashing. It goes like this: take an imaginary piece of dough, fold it, and finally squash it to its original size. Chaos arises in the pattern of how the pieces of dough end up in the final arrangement after n iter... | Here's a Python solution for the challenge of determining the number of cycles for the specified "squash-and-fold" binary process:
```python
n = int(input())
s = bin(n)[2:]
if len(s) % 2: s = '0' + s
b = s
c = 0
while True:
b = b[len(b)//2:][::-1] + b[:len(b)//2]
b = ''.join(b[i//2] if i % 2 == 0 else b[len(b)... | [
{
"from": "human",
"value": "In chaos theory, the horseshoe map is an example of how chaos arises in a simple process of folding and squashing. It goes like this: take an imaginary piece of dough, fold it, and finally squash it to its original size. Chaos arises in the pattern of how the pieces of dough end... | codegolf |
Write the shortest program to transform the standard input into Morse code. Characters not in the table should be printed as they are.
| Certainly! Below is a Python program that reads standard input and transforms it into Morse code. Characters not defined in the Morse code table will be printed as they are.
```python
import sys
morse_code_dict = {
'A': '.-', 'B': '-...', 'C': '-.-.', 'D': '-..', 'E': '.',
'F': '..-.', 'G': '--.', 'H': '....... | [
{
"from": "human",
"value": "Write the shortest program to transform the standard input into Morse code. Characters not in the table should be printed as they are.\n\n"
},
{
"from": "gpt",
"value": "Certainly! Below is a Python program that reads standard input and transforms it into Morse code.... | codegolf |
Given a list of strings, find the smallest square matrix that contains each of the initial strings. The strings may appear horizontally, vertically or diagonally and forwards or backwards like in this question Word Search Puzzle.
Words should be placed in the square, with at least one word in each direction (horizonta... | Creating a square matrix that satisfies the conditions outlined involves multiple steps, including determining an appropriate matrix size, placing the words, and then filling in the remaining spaces with random letters. Below, I present a potential implementation in Python to achieve this, followed by an example output... | [
{
"from": "human",
"value": "Given a list of strings, find the smallest square matrix that contains each of the initial strings. The strings may appear horizontally, vertically or diagonally and forwards or backwards like in this question Word Search Puzzle.\nWords should be placed in the square, with at l... | codegolf |
Task
You have a row of numbered boxes, with some filled with items and some empty. Your job is to output the number of boxes from the first to the last box, inclusive, minus the number of boxes of the largest gap between two filled boxes.
Rules
Your program should handle up to 1000 boxes. Score = size of program in byt... | To tackle the problem, we need to follow these steps:
1. **Input Parsing**: We will read the input, which consists of a list of filled box indices.
2. **Identify Box Range**: Determine the total number of boxes by identifying the minimum and maximum indices from the list.
3. **Calculate Gaps**: Calculate the sizes of ... | [
{
"from": "human",
"value": "Task\nYou have a row of numbered boxes, with some filled with items and some empty. Your job is to output the number of boxes from the first to the last box, inclusive, minus the number of boxes of the largest gap between two filled boxes.\nRules\nYour program should handle up t... | codegolf |
A simple golf to start the week! You're given three arrays: the base array B, the value array V and the index array I. You should produce another array where the values from V are inserted into B at the indices specified by I. Here is an example:
Base: [5, 1, 4, 1, 3]
Values: [0, 0, 7]
Indices: [5, 0, 3]
The indic... | # Python, 94 bytes
```python
def insert(B,V,I):
for v,i in sorted(zip(V,I),key=lambda x:x[1]):B.insert(i,v)
return B
```
### Explanation
This function, `insert`, takes three parameters: `B` (the base array), `V` (the values array), and `I` (the indices array).
1. It pairs up the values from `V` with their corresp... | [
{
"from": "human",
"value": "A simple golf to start the week! You're given three arrays: the base array B, the value array V and the index array I. You should produce another array where the values from V are inserted into B at the indices specified by I. Here is an example:\nBase: [5, 1, 4, 1, 3]\nValue... | codegolf |
I'm sure you know about the $9.99 price scheme, instead of using $10. Well, in your new job as a sys admin at a large retail store, they want prices to adhere to a similar scheme:
All prices are in whole dollars, no cents.
All prices should end with 5 or 9, rounding to the closest but up if the last digit is right bet... | To transform the input prices according to the given rules, we can follow these steps:
1. Round down any price that ends in 0, 1, 2, 3, or 4 to the nearest lower price ending with 5 or 9.
2. Round up any price that ends in 5, 6, 7, or 8 to the nearest higher price ending with 5 or 9.
3. For prices below $5, set them t... | [
{
"from": "human",
"value": "I'm sure you know about the $9.99 price scheme, instead of using $10. Well, in your new job as a sys admin at a large retail store, they want prices to adhere to a similar scheme:\n\nAll prices are in whole dollars, no cents.\nAll prices should end with 5 or 9, rounding to the c... | codegolf |
You are given a string. Output the string with one space per words.
Challenge
Input will be a string (not null or empty), surrounded with quotes(") sent via the stdin. Remove leading and trailing spaces from it. Also, if there are more than one space between two words (or symbols or whatever), trim it to just one space... | Here's a concise solution to the problem that meets the requirements you've outlined. The implementation removes leading and trailing spaces and condenses multiple spaces between words to a single space, while preserving quotes around the final output.
```python
s=input().strip()
print('"{}"'.format(' '.join(s.split()... | [
{
"from": "human",
"value": "You are given a string. Output the string with one space per words.\nChallenge\nInput will be a string (not null or empty), surrounded with quotes(\") sent via the stdin. Remove leading and trailing spaces from it. Also, if there are more than one space between two words (or sym... | codegolf |
A De Bruijn sequence is interesting: It is the shortest, cyclic sequence that contains all possible sequences of a given alphabet of a given length. For example, if we were considering the alphabet A,B,C and a length of 3, a possible output is:
AAABBBCCCABCACCBBAACBCBABAC
You will notice that every possible 3-charact... | To generate a De Bruijn sequence, we can use a backtracking approach. A De Bruijn sequence for an alphabet of size `k` and a substring length of `n` will contain `k^n` unique substrings of length `n`.
Here’s a Python function to generate the De Bruijn sequence using the provided parameters:
```python
def de_bruijn(k... | [
{
"from": "human",
"value": "A De Bruijn sequence is interesting: It is the shortest, cyclic sequence that contains all possible sequences of a given alphabet of a given length. For example, if we were considering the alphabet A,B,C and a length of 3, a possible output is:\nAAABBBCCCABCACCBBAACBCBABAC\n\nY... | codegolf |
The Kolmogorov complexity of a string S is the length of the shortest program P, written in some programming language L, whose output is exactly S.
(Yes, the real definition is more formal but this will suffice for the challenge.)
Your task in this challenge is to write the shortest possible "Kolmogorov complexity solv... | Here is a Python solution for the Kolmogorov Complexity Solver as described in the challenge. It generates all possible programs of increasing length using a specified alphabet and checks if they produce the given string `S` within a time limit `T`.
This solution utilizes `itertools.product` to generate combinations o... | [
{
"from": "human",
"value": "The Kolmogorov complexity of a string S is the length of the shortest program P, written in some programming language L, whose output is exactly S.\n(Yes, the real definition is more formal but this will suffice for the challenge.)\nYour task in this challenge is to write the sh... | codegolf |
A Chinese checkerboard looks like this (based on this question, but this time it has a fixed size):
G
. G
G G G
G G . G
B B B B . . Y G . Y . Y Y
B B B . . G . . . Y Y Y
B . B . . . . . Y . Y
B . . . . . . . . Y
. . . . . . . . .
. P . . . . . O O .
P P . . . . .... | Here is a Python solution that rotates the Chinese checkerboard by a specified multiple of 60 degrees clockwise.
```python
def rotate(n, b):
b = b.splitlines()
m = len(b)
r = [[' '] * m for _ in range(m)]
for i in range(m):
for j in range(m):
if b[i][j] != ' ':
r[(i... | [
{
"from": "human",
"value": "A Chinese checkerboard looks like this (based on this question, but this time it has a fixed size):\n G\n . G\n G G G\n G G . G\nB B B B . . Y G . Y . Y Y\n B B B . . G . . . Y Y Y\n B . B . . . . . Y . Y\n B . . . . . . . . Y\n . . . ... | codegolf |
Programmer's Garden
Being a professional software developer, you cannot risk exposing yourself to the harsh non-artificial light of the sun, but you also have a soft spot for flowers, and want to keep your garden in good shape all year round.
To this end, a gardener is hired each month to tidy up the flowerbed at the f... | Here's a concise solution to your problem that effectively removes unwanted items from the flowerbed and calculates the gardener's pay. This implementation is done in Python and keeps the overall code length to a minimum.
```python
import sys
from collections import defaultdict
# Read input from command line or stdi... | [
{
"from": "human",
"value": "Programmer's Garden\nBeing a professional software developer, you cannot risk exposing yourself to the harsh non-artificial light of the sun, but you also have a soft spot for flowers, and want to keep your garden in good shape all year round.\nTo this end, a gardener is hired e... | codegolf |
Write code to figure out whether a run of Tetris pieces could be generated by the official Tetris algorithm. Fewest bytes wins.
Official Tetris games generate the sequence of falling pieces in a special way. The seven pieces IJLOSTZ are dropped in a random order, then another random permutation is dropped, and so on.
... | Here's a compact Python solution to determine whether a given string of Tetris pieces can be a substring of a sequence generated by the official Tetris algorithm. This solution checks if the string can be constructed by a valid sequence of permutations of the pieces IJLOSTZ.
```python
def is_tetris_substring(s):
f... | [
{
"from": "human",
"value": "Write code to figure out whether a run of Tetris pieces could be generated by the official Tetris algorithm. Fewest bytes wins.\n\nOfficial Tetris games generate the sequence of falling pieces in a special way. The seven pieces IJLOSTZ are dropped in a random order, then another... | codegolf |
In this challenge you will take two inputs
One input will be a string of numbers of any length which you will put into an array/table/whatever you call it in your language
Ex:
10 10 145 20 53 102 20
Would become
arraynameofyourchoice = {10, 10, 145, 20, 53, 102, 20}
You can assume the input will have spaces in betwee... | Here's a Python script that solves the problem of finding all unique combinations of numbers that sum up to a given target. The script uses recursion to explore the combinations and employs a set to avoid duplicate results.
```python
def find_combinations(numbers, target, start=0, path=[]):
if target == 0:
... | [
{
"from": "human",
"value": "In this challenge you will take two inputs\nOne input will be a string of numbers of any length which you will put into an array/table/whatever you call it in your language\nEx:\n10 10 145 20 53 102 20\n\nWould become\narraynameofyourchoice = {10, 10, 145, 20, 53, 102, 20}\n\nYo... | codegolf |
Deadfish is one of the best known non Turing-complete programming languages. It has only one accumulator (which starts at 0) to store data, and only four commands:
i - Increment the accumulator
s - Square the accumulator
d - Decrement the accumulator
o - Output the accumulator
A Deadfish program may look like:
iiisdo
... | Creating a Deadfish code generator that outputs the shortest possible code for any integer from 0 to 255 is an interesting challenge. The strategy involves understanding the commands available and how they affect the accumulator, allowing us to derive the shortest sequence of commands that can produce any given number.... | [
{
"from": "human",
"value": "Deadfish is one of the best known non Turing-complete programming languages. It has only one accumulator (which starts at 0) to store data, and only four commands:\ni - Increment the accumulator\ns - Square the accumulator\nd - Decrement the accumulator\no - Output the accumulat... | codegolf |
As a programmer you certainly know the error of a stack overflow due to an obvious recursion.
But there are certainly many weird and unusual ways to get your favourite language to spit that error out.
Objectives:
Must cause a stack overflow which is clearly visible on the error output.
Not allowed to use an obvious ... | Here are some creative and unusual ways to induce a stack overflow error in different programming languages without using direct or indirect recursion:
### 1. Excessive Function Calls in a Loop (JavaScript)
You can create a deep call stack by continuously invoking functions in a loop. This technique avoids direct recu... | [
{
"from": "human",
"value": "As a programmer you certainly know the error of a stack overflow due to an obvious recursion.\nBut there are certainly many weird and unusual ways to get your favourite language to spit that error out. \nObjectives: \n\nMust cause a stack overflow which is clearly visible on the... | codegolf |
This challenge is entirely fictional. There is no time limit for this challenge.
My little brother is terrible with computers! He saved up all of his money to buy a new one, and within half an hour the hard drive was wiped and the only software left is a lousy BF interpreter. The worst part of it is, he has a huge Geom... | To tackle the challenge of generating Brainfuck (BF) programs for calculating the area of regular polygons based on their number of sides \(N\) and the apothem length \(a\), we need to follow some mathematical principles and carefully construct the BF programs.
### Area Calculation
The area \(A\) of a regular polygon ... | [
{
"from": "human",
"value": "This challenge is entirely fictional. There is no time limit for this challenge.\nMy little brother is terrible with computers! He saved up all of his money to buy a new one, and within half an hour the hard drive was wiped and the only software left is a lousy BF interpreter. T... | codegolf |
Background
The move-to-front transform (MTF) is a data encoding algorithm designed to improve the performance of entropy encoding techniques.
In the bzip2 compression algorithm, it is applied after the Burrows–Wheeler transform (as seen in Burrows, Wheeler and Back), with the objective of turning groups of repeated cha... | Here's a Python implementation of the Move-to-Front (MTF) transform as defined in your problem statement. This implementation is designed for code golf, meaning it is as short as possible while still being functional:
```python
def mtf(s):
d=list(" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`... | [
{
"from": "human",
"value": "Background\nThe move-to-front transform (MTF) is a data encoding algorithm designed to improve the performance of entropy encoding techniques.\nIn the bzip2 compression algorithm, it is applied after the Burrows–Wheeler transform (as seen in Burrows, Wheeler and Back), with the ... | codegolf |
In this challenge, your task is to construct an undirected graph from a sequence of directives. There is one directive for each nonnegative integer, and each transforms a given graph into a new one.
Directive 0: Add a new disconnected node.
Directive 1: Add a new node, and connect it to every existing node.
Directive ... | Here's a concise solution in Python to construct the undirected graph based on the specified directives and output the number of nodes remaining after processing all the directives. The logic is implemented in a way that tracks the nodes and their degrees efficiently:
```python
def graph_size(d):
g, deg = [], []
... | [
{
"from": "human",
"value": "In this challenge, your task is to construct an undirected graph from a sequence of directives. There is one directive for each nonnegative integer, and each transforms a given graph into a new one.\n\nDirective 0: Add a new disconnected node.\nDirective 1: Add a new node, and c... | codegolf |
Everyone knows the phrase "Rules are made to be broken!", so here is your task:
Write some code in any language that breaks a standard. This can be anything, from putting
240 volts down a USB cable, to pinging your router (NOT somebody else's website!) with a 10mb packet! (Don't get any ideas, both of these will proba... | While it's fun to joke about breaking standards, I want to emphasize that it's important to act responsibly and ethically when it comes to coding and technology. Deliberately creating unsafe code can have real-world consequences, including damage to hardware, loss of data, or even legal repercussions. Instead, I'll pro... | [
{
"from": "human",
"value": "Everyone knows the phrase \"Rules are made to be broken!\", so here is your task:\nWrite some code in any language that breaks a standard. This can be anything, from putting \n240 volts down a USB cable, to pinging your router (NOT somebody else's website!) with a 10mb packet! (... | codegolf |
Challenge:
Draw Sri Yantra.
How to:
There are different ways to draw it. All include many steps. If you think you can draw it without following the linked steps scroll below for the elements you must have in your drawing.
Complete steps can be found here:
http://www.saralhindi.com/Shri_Yantra/makingsky14steps_eng.htm
(... | Creating the Sri Yantra involves a series of precise geometric shapes and requires a good understanding of how these shapes interrelate. While I can't draw directly here, I can guide you through creating a representation of the Sri Yantra using a programming language like Python with the Matplotlib library. Below is a ... | [
{
"from": "human",
"value": "Challenge:\nDraw Sri Yantra.\nHow to:\nThere are different ways to draw it. All include many steps. If you think you can draw it without following the linked steps scroll below for the elements you must have in your drawing.\nComplete steps can be found here:\nhttp://www.saralhi... | codegolf |
You are required to write a Hangman solver. Testing against this English word list[1], the solver that solves the most number of words wins, with the number of total incorrect guesses being the tie-breaker. All words in the word list will be tested in random order.
[1]: This word list is taken from here, then the numbe... | To implement a Hangman solver that adheres to the constraints provided, we can use Python for its simplicity and ease of handling input and output. The objective is to create a deterministic solver that guesses letters based on the current state of the word and the remaining possible words.
Here’s a concise implementa... | [
{
"from": "human",
"value": "You are required to write a Hangman solver. Testing against this English word list[1], the solver that solves the most number of words wins, with the number of total incorrect guesses being the tie-breaker. All words in the word list will be tested in random order.\n[1]: This wo... | codegolf |
You have a number of polynomials who are lonely, so make them some companions (who won’t threaten to stab)!
For a polynomial of degree n, there is an n by n companion cube matrix for it. You need to make a function that accepts a list of coefficients for a polynomial in either ascending (a + bx +cx^2 + …) or descendin... | To create the companion matrix for a polynomial given its coefficients in either ascending or descending order, you can follow this approach in Python. Below is a function `companion_matrix` that accepts a list of coefficients and determines the order based on the length of the list. It then constructs the appropriate ... | [
{
"from": "human",
"value": "You have a number of polynomials who are lonely, so make them some companions (who won’t threaten to stab)!\nFor a polynomial of degree n, there is an n by n companion cube matrix for it. You need to make a function that accepts a list of coefficients for a polynomial in either... | codegolf |
This king-of-the-hill game is a strategy game in which you must throw around a water balloon and avoid getting splashed by water. The goal is to obtain the most points. You will be given a map of the field and the location of the water balloon. You can either return that you want to hit the water balloon (if you are cl... | To implement a player class for the king-of-the-hill water balloon game, we'll extend the `Player` class, implement a constructor, and provide a movement strategy that makes decisions based on the balloon's position and the player's characteristics.
Here's a possible implementation of `Player1` based on the given requ... | [
{
"from": "human",
"value": "This king-of-the-hill game is a strategy game in which you must throw around a water balloon and avoid getting splashed by water. The goal is to obtain the most points. You will be given a map of the field and the location of the water balloon. You can either return that you wan... | codegolf |
The internet has failed. DDoS attacks are now rampant and widespread. It is up to you to take control and repair the internet.
Each bot will control 20 nodes in this network. Every node is either active or safe, has an owner, and has a strength, which starts at 2. Every active node is connected to all other active n... | Given the scenario you described for the DDoS-style game where you need to manage active nodes, it's important to adopt a strategy that balances offense (attacking enemy nodes) and defense (saving your own nodes). Here’s how you can approach the problem systematically:
### Strategy Overview
1. **Prioritize Strengtheni... | [
{
"from": "human",
"value": "The internet has failed. DDoS attacks are now rampant and widespread. It is up to you to take control and repair the internet.\nEach bot will control 20 nodes in this network. Every node is either active or safe, has an owner, and has a strength, which starts at 2. Every acti... | codegolf |
Consider a function plot like this:
###########
#################
####################
... | Here is a solution written in Python that takes the specified parameters and plots the function as an ASCII art graph.
```python
import numpy as np
def plot_function(w, h, b, e, f):
x = np.linspace(b, e, w)
y = f(x)
y_min, y_max = np.min(y), np.max(y)
scale = (h - 1) / (y_max - y_min)
offset = -y... | [
{
"from": "human",
"value": "Consider a function plot like this:\n ########### \n ################# \n #################### ... | codegolf |
Introduction
You are stranded on a deserted island with some servants and are hunting for treasure. The longer one searches, the more treasure one finds. The fewer people searching, the more each person finds.
Due to limited supplies, the leader has decided that a few people, up to a quarter of the group, shall be left... | Sure, here's an implementation of a bot in Python for the described simulation, which optimally decides whether its servants should search for treasure or return to camp based on the current game state.
### Bot Name
**TreasureHunterBot**
### Language and Version
**Python 3.9**
### Code
```python
import sys
import ra... | [
{
"from": "human",
"value": "Introduction\nYou are stranded on a deserted island with some servants and are hunting for treasure. The longer one searches, the more treasure one finds. The fewer people searching, the more each person finds.\nDue to limited supplies, the leader has decided that a few people, ... | codegolf |
In this task, we consider arrays of positive integers such as this:
3 18 321 17 4 4 51 1 293 17
The input comprises a pair of such arrays both of arbitrary, possibly distinct, positive length. Determine if a total ordering ≤X ⊂ N × N, where N is the set of positive integers, exists such that both input arrays are in o... | Here is a compact Python solution to determine if a total ordering exists for the two input arrays, as defined in the problem statement.
### Python Code
```python
def check_order(arr1, arr2):
total_set = set(arr1 + arr2)
total_list = sorted(total_set)
pos = {v: i for i, v in enumerate(total_list)}
for ... | [
{
"from": "human",
"value": "In this task, we consider arrays of positive integers such as this:\n3 18 321 17 4 4 51 1 293 17\n\nThe input comprises a pair of such arrays both of arbitrary, possibly distinct, positive length. Determine if a total ordering ≤X ⊂ N × N, where N is the set of positive integers,... | codegolf |
I really love sliding tile puzzles, but recently, I haven't had time for them. Hence, I need a program to give me my fix of sliding-tile puzzles, specifically Klotski puzzles.
Your input will be in the following format:
#######
#001gg#
##.222#
.######
where # represents walls, . represents an open area, g represents ... | Here’s a concise Python solution that solves the Klotski puzzles you've provided. It implements a breadth-first search (BFS) algorithm to find the optimal sequence of moves to reach the goal state.
```python
from collections import deque
def parse_puzzle(puzzle):
walls, blocks, grid = [], {}, []
for y, line i... | [
{
"from": "human",
"value": "I really love sliding tile puzzles, but recently, I haven't had time for them. Hence, I need a program to give me my fix of sliding-tile puzzles, specifically Klotski puzzles.\nYour input will be in the following format:\n#######\n#001gg#\n##.222#\n.######\n\nwhere # represents... | codegolf |
It's time... to count the votes!
Today there are local elections in my entire country. Here, the number of seats for each party is decided using the D'Hondt method. Your goal is to implement a program or function that will decide how many seats each party gets, in the shortest amount of bytes.
For this method there are... | Here's a concise implementation of the D'Hondt method in Python, which distributes seats based on the votes received by each party. This implementation will also include the bonus feature that outputs party names alongside the seat allocation.
```python
import random
def dhondt(n, votes):
votes = [list(map(int, ... | [
{
"from": "human",
"value": "It's time... to count the votes!\nToday there are local elections in my entire country. Here, the number of seats for each party is decided using the D'Hondt method. Your goal is to implement a program or function that will decide how many seats each party gets, in the shortest ... | codegolf |
You should write a program or function that receives a positive integer N as input and prints out the first N characters of your code. If N is larger than the length of your code you should continue output your code cyclically.
Reading your source code in any way and reading from file, stdio, etc. are disallowed.
Examp... | Here's a simple Python program that fulfills the requirements outlined in your prompt. The program defines a string variable containing its own code and then prints the first N characters of that string cyclically if needed.
```python
code = 'code = {!r}\nN = int(input())\nprint((code * ((N // len(code)) + 1))[:N])\n'... | [
{
"from": "human",
"value": "You should write a program or function that receives a positive integer N as input and prints out the first N characters of your code. If N is larger than the length of your code you should continue output your code cyclically.\nReading your source code in any way and reading fr... | codegolf |
The worst part about long lines or code or math equations are the parentheses. Nobody wants to read through 2x(3y+4*abs(x^[2*e^x])-5{3(x+y)-5})!
So, the goal of this challenge is to make it at least slightly easier to read these parentheses-filled beasts! For the above math equation, the output should be:
2x (
3y+4*a... | To achieve the desired formatting for the math expression with proper indentation and spacing around parentheses, here's a Python function that processes the input string accordingly. The function will format the input string and print the properly indented output.
```python
def format_expression(expr, indent=0):
... | [
{
"from": "human",
"value": "The worst part about long lines or code or math equations are the parentheses. Nobody wants to read through 2x(3y+4*abs(x^[2*e^x])-5{3(x+y)-5})!\nSo, the goal of this challenge is to make it at least slightly easier to read these parentheses-filled beasts! For the above math equ... | codegolf |
I like to save time quite literally, by wearing three watches on my wrist... Problem is they each give a different time. One watch is x minutes behind the actual time. One watch is x minutes ahead of the actual time. The last watch shows the actual time.
Problem is, I can't tell which watch has the correct time...
Fro... | You can solve this problem using the following Python code:
```python
def correct_time(watches):
times = []
for h, m in watches:
times.append((h, m))
for t in times:
if all((t[0] - h) % 12 in {0, 1, 11} for h, _ in times) and all((t[1] - m) % 60 in {0, 1, 59} for _, m in times... | [
{
"from": "human",
"value": "I like to save time quite literally, by wearing three watches on my wrist... Problem is they each give a different time. One watch is x minutes behind the actual time. One watch is x minutes ahead of the actual time. The last watch shows the actual time.\nProblem is, I can't tel... | codegolf |
Golf Me An OOP!
Two important components of object-oriented programming are inheritance and composition. Together, they allow for creating simple yet powerful class hierarchies to solve problems. Your task is to parse a series of statements about a class hierarchy, and answer questions about the hierarchy.
Input
A seri... | ## Python, 196 bytes
```python
from collections import defaultdict
c,p={},defaultdict(set)
for l in open(0):n,*s=l.split();c[n]=1if s[1]=="a"else 0;p[n].add(s[-1])
def q(n,t):return n in c and(c[n]==1and t in p[n]or c[n]==0and t in p[n])or(c[n]==0and n in p and t in p[n])
for l in open(0):print(q(*l.split()[1:]))
```
... | [
{
"from": "human",
"value": "Golf Me An OOP!\nTwo important components of object-oriented programming are inheritance and composition. Together, they allow for creating simple yet powerful class hierarchies to solve problems. Your task is to parse a series of statements about a class hierarchy, and answer q... | codegolf |
Monday Mini-Golf: A series of short code-golf questions, posted (hopefully!) every Monday.
(Sorry I'm late again; I was away from my computer basically all of yesterday and today.)
Us programmers (especially the code-golfers) sure love arbitrary integer sequences. We even have an entire site dedicated to these sequenc... | Here's a solution in Python that generates the required sequence based on the given rules.
```python
def sequence(n):
result = []
while n >= 10:
result.append(n)
n = eval('*'.join(str(d) if d != '0' else '1' for d in str(n))) + str(n).count('0')
result.append(n)
return ' '.join(map(str... | [
{
"from": "human",
"value": "Monday Mini-Golf: A series of short code-golf questions, posted (hopefully!) every Monday.\n(Sorry I'm late again; I was away from my computer basically all of yesterday and today.)\nUs programmers (especially the code-golfers) sure love arbitrary integer sequences. We even hav... | codegolf |
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