problem stringlengths 67 28.8k | completion stringlengths 36 8.76k | conversations listlengths 2 2 | source stringclasses 1
value |
|---|---|---|---|
A boolean circuit in TCS is basically a DAG consisting of And, Or, Not gates, and by what is known is "functional completeness" they can compute all possible functions. eg this is the basic principle in an ALU.
Challenge: create a circuit to determine whether an 8-binary-digit number is divisible by 3 and somehow vis... | Creating a boolean circuit to determine whether an 8-bit binary number is divisible by 3 can be approached by leveraging modular arithmetic properties. The modular behavior of binary numbers allows us to simplify how we check for divisibility by 3.
### General Algorithm
1. **Modulus Operation**: When checking if a nu... | [
{
"from": "human",
"value": "A boolean circuit in TCS is basically a DAG consisting of And, Or, Not gates, and by what is known is \"functional completeness\" they can compute all possible functions. eg this is the basic principle in an ALU.\n\nChallenge: create a circuit to determine whether an 8-binary-d... | codegolf |
Beal's Conjecture has a million dollar prize if you prove/disprove it.
It states that if where A, B, C, x, y, and z are positive integers with x, y, z > 2, then A, B, and C have a common prime factor.
The challenge is to write a program that searches for a counter example to disprove this!
Rules
Write a program sear... | Creating a program to search for counterexamples to Beal's Conjecture can be an interesting challenge. Below is an approach using Python with the help of the `sympy` library to handle arbitrary-precision integers and to check for common prime factors.
### Python Code
```python
from sympy import isprime, gcd
def prim... | [
{
"from": "human",
"value": "Beal's Conjecture has a million dollar prize if you prove/disprove it.\nIt states that if where A, B, C, x, y, and z are positive integers with x, y, z > 2, then A, B, and C have a common prime factor.\nThe challenge is to write a program that searches for a counter example to ... | codegolf |
Write a polyglot (code that works in two or more languages) that has a "mid-section" that can be modified to do any computational task. This question is similar to https://stackoverflow.com/questions/1053931/code-golf-shortest-turing-complete-interpreter.
Rules:
The program must be able to preform a computation and pri... | Creating a polyglot program that can perform arbitrary computations while maintaining functionality across different programming languages is a fun and challenging task. Below is an example of such a program using Python and Ruby. In this polyglot code, there is a "mid-section" where you can insert any computation you ... | [
{
"from": "human",
"value": "Write a polyglot (code that works in two or more languages) that has a \"mid-section\" that can be modified to do any computational task. This question is similar to https://stackoverflow.com/questions/1053931/code-golf-shortest-turing-complete-interpreter.\nRules:\nThe program ... | codegolf |
As a kid my sister showed me this little love calculation to see how much chance you have of getting in a successful relationship with your crush. All you need is 2 names and a piece of paper.
John
Jane
Then, you separate these names with the word Loves. You can either write this on one line or on new lines.
Joh... | Certainly! Below is a Python implementation of the love calculation algorithm you described. The program takes two names as input, calculates the love compatibility score, and provides the final result.
```python
def count_characters(name1, name2):
# Combine the names with 'Loves'
full_string = name1 + "Loves"... | [
{
"from": "human",
"value": "As a kid my sister showed me this little love calculation to see how much chance you have of getting in a successful relationship with your crush. All you need is 2 names and a piece of paper. \n\nJohn \nJane\n\nThen, you separate these names with the word Loves. You can eithe... | codegolf |
Your goal is to determine if a number is divisible by 3 without using conditionals.
The input will be an unsigned 8 bit number from 0 to 255. Creativity encouraged!
You are ONLY allowed to use
Equality/Inequality (==, !=, >, <, >=, <=)
Arithmetic (+, -, x)
Logical Operators (! not, && and, || or)
Bitwise Operators ... | You can determine if an unsigned 8-bit number is divisible by 3 by leveraging the properties of modulo arithmetic and logical operations. Here's a compact solution that adheres to the constraints you provided:
```python
f=n=>1-((n*0b11001100&255)/3%2)
```
### Explanation:
1. **Input**: `n` is the input number (0 to 2... | [
{
"from": "human",
"value": "Your goal is to determine if a number is divisible by 3 without using conditionals. \nThe input will be an unsigned 8 bit number from 0 to 255. Creativity encouraged!\nYou are ONLY allowed to use\n\nEquality/Inequality (==, !=, >, <, >=, <=)\nArithmetic (+, -, x)\nLogical Operat... | codegolf |
This is a simple encryption method that uses PI digits to encode a message, the method is simple:
The key is just a positive integer that indicates where the window starts then:
Given a string to encrypt, containing only lowercase letters, no spaces, you take its length, then you find the Nth digit of PI and then proce... | Here’s a Python solution to the problem you described, implementing a simple encryption method using the digits of π (pi) calculated programmatically. This code calculates the digits of pi using the Chudnovsky algorithm, extracts the required digits based on the key, and then encodes the given message accordingly.
```... | [
{
"from": "human",
"value": "This is a simple encryption method that uses PI digits to encode a message, the method is simple:\nThe key is just a positive integer that indicates where the window starts then:\nGiven a string to encrypt, containing only lowercase letters, no spaces, you take its length, then ... | codegolf |
Yesterday, I stumbled on a very clever thing.
Yes, that's a working implementation of Tic-Tac-Toe on a user profile page, from @minitech. Of course, the moment I saw it, I had to reverse engineer his idea and one-up him :P
Here's my own example embedded directly in the post. It's a tad buggy due to a couple of impl... | That sounds like a fun and engaging challenge! If you're looking to create a working game using a web server and embed it into a post, here's a simplified guide on how you might approach it. The example I’ll provide is a basic implementation of the classic game “Towers of Hanoi” using HTML, CSS, and JavaScript.
### St... | [
{
"from": "human",
"value": "Yesterday, I stumbled on a very clever thing.\n\nYes, that's a working implementation of Tic-Tac-Toe on a user profile page, from @minitech. Of course, the moment I saw it, I had to reverse engineer his idea and one-up him :P\n\nHere's my own example embedded directly in the po... | codegolf |
I have read a question similar to this. I found it interesting, and difficult so I rephrased the question as a code golf. (that question is closed )
Challenge:
In 1 million and 1 numbers, all the numbers having the duplicate except only one number . Write a program that can find this unique number.
Input form:
a t... | To solve the problem of finding the unique number in a list of 1 million integers where all numbers except one are duplicates, we can leverage the properties of the XOR operation. The XOR operation has the following properties that are useful for this task:
1. **x ^ x = 0**: Any number XOR'd with itself will result in... | [
{
"from": "human",
"value": "I have read a question similar to this. I found it interesting, and difficult so I rephrased the question as a code golf. (that question is closed )\nChallenge:\n\nIn 1 million and 1 numbers, all the numbers having the duplicate except only one number . Write a program that can... | codegolf |
SAT is the problem of determining whether a boolean expression can be made true. For example, (A) can be made true by setting A=TRUE, but (A && !A) can never be true. This problem is known to be NP-complete. See Boolean Satisfiability.
Your task is to write a program for SAT that executes in polynomial time, but may no... | To tackle the SAT problem with a program that runs in polynomial time but doesn't guarantee to solve all cases, I'll provide a simple implementation in Python. This implementation will use a basic approach based on checking all possible variable assignments for a given boolean expression. While checking every assignmen... | [
{
"from": "human",
"value": "SAT is the problem of determining whether a boolean expression can be made true. For example, (A) can be made true by setting A=TRUE, but (A && !A) can never be true. This problem is known to be NP-complete. See Boolean Satisfiability.\nYour task is to write a program for SAT th... | codegolf |
Create the shortest function to print a magic square of given size.
A magic square is a NxN matrix of distinct numbers and the sum of each row, column and diagonal is equal to a constant.
A magic square of size 4 is:
07 12 01 14
02 13 08 11
16 03 10 05
09 06 15 04
And the constant is 34.
The function should be able to... | Here's a concise function written in Python that generates a magic square of a given size \( N \). It uses the Siamese method (De la Loubere's method), which is efficient for creating odd-ordered magic squares. For even sizes, the function handles the specific cases for doubly even and singly even magic squares.
```py... | [
{
"from": "human",
"value": "Create the shortest function to print a magic square of given size.\nA magic square is a NxN matrix of distinct numbers and the sum of each row, column and diagonal is equal to a constant.\nA magic square of size 4 is:\n07 12 01 14\n02 13 08 11\n16 03 10 05\n09 06 15 04\n\nAnd t... | codegolf |
It's been a rough few months at work and I feel like I just want to scream right to my boss' face. I am, however, not one to directly confront people I have a problem with. I also don't want to lose my job.
So here's an idea: I want to be able to insult him, without him ever finding out. And I realized the perfect way:... | Here's a Python solution to your request that encodes the phrase "DIE IN A GREASE FIRE" in the left column of the output message while preserving the original text's formatting as required:
```python
def format_message(msg):
target = "DIE IN A GREASE FIRE"
words = msg.split()
if len(words) < len(target.spl... | [
{
"from": "human",
"value": "It's been a rough few months at work and I feel like I just want to scream right to my boss' face. I am, however, not one to directly confront people I have a problem with. I also don't want to lose my job.\nSo here's an idea: I want to be able to insult him, without him ever fi... | codegolf |
Two prime numbers are defined as twin primes if they differ by two. For example, 3 and 5 are twin primes as are 29 and 31.
Write a program that finds the nth pair of twin primes (where n comes from STDIN) and prints them on STDOUT, separated by a comma and a space. This is code-golf, so the shortest code wins.
Sample i... | Here's a concise Python solution to find the nth pair of twin primes:
```python
n=int(input())
p=[2]
for i in range(3,10**6,2):
if all(i%j for j in p):
p+=[i]
if len(p)>1 and p[-1]-p[-2]==2: n-=1;
if n==0: print(p[-2],p[-1],sep=', ')
```
### Explanation:
1. **Input Reading**: The program reads the integer `n`... | [
{
"from": "human",
"value": "Two prime numbers are defined as twin primes if they differ by two. For example, 3 and 5 are twin primes as are 29 and 31.\nWrite a program that finds the nth pair of twin primes (where n comes from STDIN) and prints them on STDOUT, separated by a comma and a space. This is code... | codegolf |
I got the following question at a test:
Write a function f with the following type a -> b -> (a -> b). a and b should not be bound in any sense, the shorter the code, the better.
I came up with f a b = \x -> snd ([a,x],b). Can you find something tinier?
Currently the winner is: f _=(.f).const
| Certainly! The function you provided is clever, but there’s an even shorter way to define a function with the type `a -> b -> (a -> b)` in Haskell. You can use a point-free style to minimize the code further. Here's a concise version:
```haskell
f = flip const
```
This definition uses `flip` to switch the order of th... | [
{
"from": "human",
"value": "I got the following question at a test:\n\nWrite a function f with the following type a -> b -> (a -> b). a and b should not be bound in any sense, the shorter the code, the better.\n\nI came up with f a b = \\x -> snd ([a,x],b). Can you find something tinier?\nCurrently the win... | codegolf |
Intro
I guess most people are familiar with the game Lights Off, but in case someone isn't, here is a short description:
You start with an NxN grid where each cell in the grid is a light. For this example N=5. There are 2 ways the game can start: either all of the lights are on, or some lights are off. The goal is t... | Here's a simple interactive console version of the Lights Off game implemented in Python. This version allows the player to choose the grid size, whether to start with all lights on or off, and handles the gameplay in a text-based format. You can run this code in any Python environment.
```python
import random
def to... | [
{
"from": "human",
"value": "Intro\nI guess most people are familiar with the game Lights Off, but in case someone isn't, here is a short description: \n\nYou start with an NxN grid where each cell in the grid is a light. For this example N=5. There are 2 ways the game can start: either all of the lights a... | codegolf |
Write a program, in a language of your choice, that will compose a quine program of a requested size. The generated program may be in the same or a different language, if desired.
Programs are scored based on the following formula:
generating_program_length + smallest_supported_size + 512 * number_of_supported_sizes ^... | Here's a Python program that generates a quine of a specified size. The quine will be written in Python as well. This program supports sizes from 10 to 100 characters. For simplicity, the generated quine will be a simple variation of the common Python quine. The program ensures that it can produce quines of various siz... | [
{
"from": "human",
"value": "Write a program, in a language of your choice, that will compose a quine program of a requested size. The generated program may be in the same or a different language, if desired.\nPrograms are scored based on the following formula:\n\ngenerating_program_length + smallest_suppor... | codegolf |
Imagine a rectangular grid of | characters represents the taut strings on a loom (the warp) that other threads (the weft), which we will represent as -, can be woven around.
Here is the unwoven warp of a 7×4 loom:
|||||||
|||||||
|||||||
|||||||
There are a number of ways the weft can be woven into the warp, the simpl... | Here's a concise Python solution that generates a woven pattern based on the specified parameters (v, u, s, width, height, initial shift):
```python
def weave(w, h, s, v, u, shift):
for r in range(h):
row = ''
for c in range(w):
if (c + shift + r * s) % (u + v) < v:
row ... | [
{
"from": "human",
"value": "Imagine a rectangular grid of | characters represents the taut strings on a loom (the warp) that other threads (the weft), which we will represent as -, can be woven around.\nHere is the unwoven warp of a 7×4 loom:\n|||||||\n|||||||\n|||||||\n|||||||\n\nThere are a number of way... | codegolf |
Write a program to find a number consisting of 9 digits in which each of the digits from 1 to 9 appears only once. This number must also satisfy these divisibility requirements:
The number should be divisible by 9.
If the rightmost digit is
removed, the remaining number should be divisible by 8.
If the
rightmost dig... | Certainly! The problem is to find a 9-digit number using the digits 1 to 9 exactly once, which fulfills specific divisibility conditions when progressively removing digits from the right.
Here's how to implement a Python program to solve this:
```python
from itertools import permutations
def check_divisibility_condi... | [
{
"from": "human",
"value": "Write a program to find a number consisting of 9 digits in which each of the digits from 1 to 9 appears only once. This number must also satisfy these divisibility requirements:\n\nThe number should be divisible by 9. \nIf the rightmost digit is\nremoved, the remaining number sh... | codegolf |
Introduction
You are given a random integer generator with the following implementation
The first invocation always returns 1.
The second invocation returns a random integer between 1 and 2.
The third invocation returns a random integer between 1 and 3.
The nth invocation returns a random integer between 1 and n, incl... | Here's a code-golf solution for generating a random number between 1 and 6 using the specified random integer generator. The solution includes the `asc-rand` implementation and the logic to generate a dice roll.
We'll be using Python for this example. You can run the code in an environment where you can call `asc-rand... | [
{
"from": "human",
"value": "Introduction\nYou are given a random integer generator with the following implementation\n\nThe first invocation always returns 1.\nThe second invocation returns a random integer between 1 and 2.\nThe third invocation returns a random integer between 1 and 3.\nThe nth invocation... | codegolf |
You are given two functions \$g(x)\$ and \$h(x)\$, each of which takes an integer \$x\$ and returns the number \$ax + b\$ (where \$a\$ and \$b\$ are integers defined in the function).
Your task is to write a function \$f(g, h)\$ that takes these two functions, and returns a function \$k(x) = g(h(x))\$, but where the pr... | To create a function \( f(g, h) \) that takes the two functions \( g(x) = ax + b \) and \( h(x) = cx + d \), and returns a new function \( k(x) = g(h(x)) \) in the form \( ax + b \), we need to derive the coefficients for \( k(x) \).
1. **Identify the forms of the functions:**
- \( g(x) = a_g x + b_g \)
- \( h(x... | [
{
"from": "human",
"value": "You are given two functions \\$g(x)\\$ and \\$h(x)\\$, each of which takes an integer \\$x\\$ and returns the number \\$ax + b\\$ (where \\$a\\$ and \\$b\\$ are integers defined in the function).\nYour task is to write a function \\$f(g, h)\\$ that takes these two functions, and... | codegolf |
Challenge:
Given a Sudoku board on standard input, find the minimum number of numbers added to make the board unique.
Specifics/Rules:
The input is formatted as follows (all whitespace is significant)
516|827|943
278|394|615
349|615|872
---+---+---
98 |4 2|156
465|189|237
12 |5 6|489
---+---+---
892|743|561
634|951|72... | Here's a Python solution for the Sudoku uniqueness problem as specified in your challenge. The solution checks for a given Sudoku board input and determines the minimum numbers needed to make the board uniquely solvable. This implementation reads from standard input, processes the board, and outputs the required number... | [
{
"from": "human",
"value": "Challenge:\nGiven a Sudoku board on standard input, find the minimum number of numbers added to make the board unique.\nSpecifics/Rules:\n\nThe input is formatted as follows (all whitespace is significant)\n516|827|943\n278|394|615\n349|615|872\n---+---+---\n98 |4 2|156\n465|189... | codegolf |
There’s already been a question about simulating the Monty Hall Problem. This one is different. The user will play the Monty Hall Problem. Your program will play the role of the host. Montybot, if you like.
Here are the steps:
Pick (randomly) which of the three doors hides the prize.
Output a visual display of three... | Here's a Python solution to simulate the Monty Hall Problem while adhering to your specified rules and being concise for code golf:
```python
import random
d=["A","B","C"]
p=random.choice(d)
c=input("Choose a door (A, B, C): ")
d.remove(c)
d.remove(p)
o=random.choice(d)
print(f"{c}0{[x for x in 'ABC' if x!=c and x!=o]... | [
{
"from": "human",
"value": "There’s already been a question about simulating the Monty Hall Problem. This one is different. The user will play the Monty Hall Problem. Your program will play the role of the host. Montybot, if you like.\nHere are the steps: \n\nPick (randomly) which of the three doors hides... | codegolf |
A man lives in the north-west corner (0, 0) of a town with height h and width w . Everyday he walks from his home to the border (?, w) or (h, ?). In the following example, the man goes to (3, 3) today.
(0, 0) +--+ + + . (0, 4)
|
+ +--+--+ .
|
+ + + + .
... | The problem requires us to find the man's final destination after walking for `n` days based on the grid of bits he records. The challenge lies in the constraints, especially with `n` being as large as 1 billion, so we need to find an efficient way to simulate the behavior without iterating through all `n` days.
### A... | [
{
"from": "human",
"value": "A man lives in the north-west corner (0, 0) of a town with height h and width w . Everyday he walks from his home to the border (?, w) or (h, ?). In the following example, the man goes to (3, 3) today.\n(0, 0) +--+ + + . (0, 4)\n | \n + +--+--+ .\n ... | codegolf |
Input: A line of the standard slope-and-intercept form: mx+b, as well as a set of Cartesian points determining the vertices of a polygon. Assume that the x and y values of the points will be integers.
Output: A boolean, which is true if the line enters or touches the polygon, and is false otherwise.
This is a little tr... | To determine whether a line enters or touches a polygon defined by a set of Cartesian points, we can break the problem down into a few steps:
1. **Parse the Input**: We need to extract the slope `m` and y-intercept `b` from the line equation in the form `mx+b` and the vertices of the polygon.
2. **Generate Edges**: T... | [
{
"from": "human",
"value": "Input: A line of the standard slope-and-intercept form: mx+b, as well as a set of Cartesian points determining the vertices of a polygon. Assume that the x and y values of the points will be integers.\nOutput: A boolean, which is true if the line enters or touches the polygon, a... | codegolf |
Most of you probably know the C major scale:
C D E F G A B C
The major scale is characterised by the intervals between adjacent notes, which measured in semitones are:
2 2 1 2 2 2 1
From these intervales, we can construct any major scale starting in any note (the key of the scale). The 12 notes in our 12-tone equal t... | To create a program that takes a key and a mode as input and outputs the corresponding scale, we first need to define the note sequence and the intervals associated with each mode. Let's break it down step by step.
### Step 1: Define the Notes and Intervals
We will define the 12-tone equal temperament system and the i... | [
{
"from": "human",
"value": "Most of you probably know the C major scale:\nC D E F G A B C\n\nThe major scale is characterised by the intervals between adjacent notes, which measured in semitones are:\n2 2 1 2 2 2 1\n\nFrom these intervales, we can construct any major scale starting in any note (the key of ... | codegolf |
Write a program that takes a brainfuck program and compiles it to executable machine code. You can target x86, x86_64, jvm (java bytecode) or armv6, and use one of the following executable formats: ELF, a.out, class file, exe, com. The executable should work in Linux or Windows (or Java on either).
Neither your program... | Creating a complete Brainfuck compiler that generates executable machine code in a short amount of code is a complex task, especially for x86 or ARM architectures, as it involves generating assembly code, linking, and then producing the final executable format. A very condensed solution may not provide the level of det... | [
{
"from": "human",
"value": "Write a program that takes a brainfuck program and compiles it to executable machine code. You can target x86, x86_64, jvm (java bytecode) or armv6, and use one of the following executable formats: ELF, a.out, class file, exe, com. The executable should work in Linux or Windows ... | codegolf |
Objective
From Wikipedia :
A recursive acronym is an acronym that refers to itself in the expression for which it stands.
Your goal is to check if a string is a recursive acronym.
The acronym is the first word
Words are not case sensitive, separated with a single space.
The given string does not contain any p... | Here's a concise solution in Python to check if a string is a recursive acronym:
```python
def f(s):
w=s.lower().split();a=w[0];r=[x for x in w[1:]if x[0]==a]
return {True,r} if r else False
```
### Explanation:
- We convert the entire string to lowercase and split it into words.
- The first word is treated a... | [
{
"from": "human",
"value": "Objective\nFrom Wikipedia : \n\nA recursive acronym is an acronym that refers to itself in the expression for which it stands. \n\nYour goal is to check if a string is a recursive acronym. \n\nThe acronym is the first word\nWords are not case sensitive, separated with a single... | codegolf |
The aim is to parse a sentence and compress/encrypt it according to the rules below and then decrypt it using the key:
Remove all letters in a word before the first vowel is encountered. Example: pigeon becomes igeon.
All characters except alphabets should be kept in the sentence including numerals, punctuations, etc.... | To achieve the requirements specified, we can write two functions in Python: `encrypt()` and `decrypt()`. The goal is to minimize the combined size of these functions while also generating a compact key. Let's implement the solution step by step.
1. **Encrypt Function**: This function will parse the input sentence, re... | [
{
"from": "human",
"value": "The aim is to parse a sentence and compress/encrypt it according to the rules below and then decrypt it using the key:\n\nRemove all letters in a word before the first vowel is encountered. Example: pigeon becomes igeon.\nAll characters except alphabets should be kept in the sen... | codegolf |
Consider these seven ASCII train cars.
Engine (E)
__
====== \/
| [] |=========
| )
================
O-O-O O-O-O \\
Passenger car (P)
===============
| [] [] [] [] |
===============
O-O O-O
Boxcar (B)
===============
|-|-| | |-|-|
===============
O-O O-O
Tanker (T)
__... | Here’s a concise solution in Python that meets the requirements specified for the ASCII train representation.
```python
train = {
'E': [" __",
"====== \/",
"| [] |=========",
"| )",
"================",
" O-O-O O-O-O \\"],
'P': ["... | [
{
"from": "human",
"value": "Consider these seven ASCII train cars.\nEngine (E)\n __\n====== \\/\n| [] |=========\n| )\n================\n O-O-O O-O-O \\\\\n\nPassenger car (P)\n===============\n| [] [] [] [] |\n===============\n O-O O-O\n\nBoxcar (B)\n===============\n|... | codegolf |
When I'm at a store and I pay for something in cash, I always try to give as exact change as possible in order to minimize the number of coins I have left in my wallet afterwards.
Your task is to build a program that will automate this process for me.
Your program will accept as input:
a line containing a single decim... | To solve the problem of giving exact change for a purchase while minimizing the remaining coins and bills in your wallet, we can break down the solution into several steps:
1. **Input Parsing**: Read the item's price, the denominations in your wallet, and the cashier's available denominations.
2. **Calculating Paymen... | [
{
"from": "human",
"value": "When I'm at a store and I pay for something in cash, I always try to give as exact change as possible in order to minimize the number of coins I have left in my wallet afterwards.\nYour task is to build a program that will automate this process for me.\nYour program will accept ... | codegolf |
Time to dig up your old trigonometry notes from high school! The challenge is to solve the unknown sides and angles of different triangles. And as is customary in code golf, the smallest working code wins.
This is not a trivial problem; my reference implementation in python is currently down to 838 837 characters, but ... | Here’s a concise implementation in Python to solve the triangle problems as per your requirements. The code uses trigonometric principles to determine the unknown sides and angles and handles cases with no solutions and multiple solutions.
```python
import sys,math
def solve(a,b,c,A,B,C):
if a+b>c and a+c>b and b... | [
{
"from": "human",
"value": "Time to dig up your old trigonometry notes from high school! The challenge is to solve the unknown sides and angles of different triangles. And as is customary in code golf, the smallest working code wins.\nThis is not a trivial problem; my reference implementation in python is ... | codegolf |
Imagine the following scenario: you are playing battleships with a friend but decide to cheat. Rather than moving a ship after he shoots where your ship used to be, you decide not to place any ships at all. You tell him all his shots are misses, until it is impossible to place ships in such a way.
You have to write a f... | Here is a Python implementation of a simplified Battleship game that fulfills your requirements, focusing on a short and efficient solution. This implementation creates a battlefield of the specified size, places ships according to the given counts, and then responds to a series of shots by indicating misses without ac... | [
{
"from": "human",
"value": "Imagine the following scenario: you are playing battleships with a friend but decide to cheat. Rather than moving a ship after he shoots where your ship used to be, you decide not to place any ships at all. You tell him all his shots are misses, until it is impossible to place s... | codegolf |
I always used a Mandelbrot image as the 'graphical' version of Hello World in any graphical application I got my hands on. Now it's your guys' turn.
Language must be capable of graphical output or drawing charts (saving files disallowed)
Render a square image or graph. The size at least 128 and at most 640 across*
The... | Here's a Python solution using the `Pygame` library to generate a Mandelbrot fractal image as specified:
```python
import pygame
# Configuration
WIDTH, HEIGHT = 640, 640
MAX_ITER = 100
COLORS = [(i * 5 % 256, i * 3 % 256, i * 7 % 256) for i in range(MAX_ITER)]
def mandelbrot(xmin, xmax, ymin, ymax, width, height):
... | [
{
"from": "human",
"value": "I always used a Mandelbrot image as the 'graphical' version of Hello World in any graphical application I got my hands on. Now it's your guys' turn.\n\nLanguage must be capable of graphical output or drawing charts (saving files disallowed)\nRender a square image or graph. The s... | codegolf |
Challenge:
Write a a program to take an array of 24 4-letter strings, and output a compressed (lossless) representation of the array. You should also provide a program to decompress your representations.
Input:
The input will be comprised of 4 letter words using each of [G,T,A,C] exactly once (e.g. GTAC, ATGC, CATG, et... | Certainly! Below is a Python implementation that compresses an array of 24 4-letter strings using the characters G, T, A, and C. The output is a base64 string representation that can be decompressed back to the original list.
### Compression Program
```python
import base64
def compress(words):
# Define the possi... | [
{
"from": "human",
"value": "Challenge:\nWrite a a program to take an array of 24 4-letter strings, and output a compressed (lossless) representation of the array. You should also provide a program to decompress your representations.\nInput:\nThe input will be comprised of 4 letter words using each of [G,T,... | codegolf |
Create a function that will output a set of distinct random numbers drawn from a range. The order of the elements in the set is unimportant (they can even be sorted), but it must be possible for the contents of the set to be different each time the function is called.
The function will receive 3 parameters in whatever ... | Here's a Python implementation of a function that meets your criteria for generating a set of distinct random integers from a specified range. This function utilizes the `random.sample` method, which ensures that the generated numbers are distinct and randomly chosen.
```python
import random
def generate_random_set(c... | [
{
"from": "human",
"value": "Create a function that will output a set of distinct random numbers drawn from a range. The order of the elements in the set is unimportant (they can even be sorted), but it must be possible for the contents of the set to be different each time the function is called.\nThe funct... | codegolf |
Background
Mu Torere is a game that is one of only two known to be played by the Maori people of New Zealand before European influence. This makes it a very unique game in that it has an "objective winning criterion" and rules of play that are different from most other games in existence.
Gameplay:
The board is an oc... | Creating a complete program for a perfect game of Mu Torere while adhering to the constraints of code golf can be quite challenging. Below is a Python implementation that should meet the requirements you've outlined, while ensuring the game is playable against a human opponent.
The following code demonstrates a simple... | [
{
"from": "human",
"value": "Background\nMu Torere is a game that is one of only two known to be played by the Maori people of New Zealand before European influence. This makes it a very unique game in that it has an \"objective winning criterion\" and rules of play that are different from most other games ... | codegolf |
Challenge
I'm sure you read the title, and came in to farm your rep, thinking its kids' stuff, but think again! You have to challenge each other in the shortest code to count the occurences of a string in another. For example, given the following input:
aaaabbbbsssffhd
as a string, and the string
s
should output ... | Here’s a solution in Python that adheres to the rules of the challenge, counting the occurrences of a substring within a string without using built-in functions for counting:
```python
s = "aaaabbbbsssffhd"
sub = "s"
count = 0
while s:
pos = s.find(sub)
if pos == -1:
break
count += 1
s = s[:pos... | [
{
"from": "human",
"value": "Challenge\nI'm sure you read the title, and came in to farm your rep, thinking its kids' stuff, but think again! You have to challenge each other in the shortest code to count the occurences of a string in another. For example, given the following input: \n\naaaabbbbsssffhd\n\na... | codegolf |
You are a contractor for a company who designs electrical circuits for the various products they make. One day, the company accidentally gets a huge shipment of one-ohm resistors and absolutely nothing else, and give you the task of putting them to good use in the newest products they're making.
Your task is to build a... | To tackle the problem of constructing a resistor diagram using one-ohm resistors for a given positive rational number in the form of a fraction \( a/b \), we can leverage the series and parallel configurations of resistors.
Here's how to systematically build a solution that adheres to the specified requirements and u... | [
{
"from": "human",
"value": "You are a contractor for a company who designs electrical circuits for the various products they make. One day, the company accidentally gets a huge shipment of one-ohm resistors and absolutely nothing else, and give you the task of putting them to good use in the newest product... | codegolf |
Despite your protest, you have been put to work by your boss on a program that takes a single unsigned integer as input and prints the string "prime" if that integer is prime and "not prime" if it isn't. You may choose which language you do this in, as long as the resulting program is short; your boss very much appreci... | Here's a solution in Python that meets the requirements specified. This program checks if an unsigned integer is prime, while also providing the hidden message in a different language.
```python
def is_prime(n):
if n < 2: return 0
for i in range(2, int(n**0.5)+1):
if n % i == 0: return 0
return 1
... | [
{
"from": "human",
"value": "Despite your protest, you have been put to work by your boss on a program that takes a single unsigned integer as input and prints the string \"prime\" if that integer is prime and \"not prime\" if it isn't. You may choose which language you do this in, as long as the resulting ... | codegolf |
The Task
This is quite a simple coding task, all your program has to do is place a point on a canvas (or your alternative in another coding language) and connect it to all the dots already placed. Your program must take in one input, the number of dots that should be placed, and output some sort of display with the do... | Here's a short Python script that meets the requirements of your task. This script uses the `matplotlib` library to generate and display a plot with randomly placed dots, connecting all of them with lines.
```python
import matplotlib.pyplot as plt
import numpy as np
n=10 # Change this number for the desired amount o... | [
{
"from": "human",
"value": "The Task\nThis is quite a simple coding task, all your program has to do is place a point on a canvas (or your alternative in another coding language) and connect it to all the dots already placed. Your program must take in one input, the number of dots that should be placed, a... | codegolf |
It is simple. I cannot stand when people use spaces when naming files. It sometimes wrecks console commands and makes the output of ls ugly.
The challenge is to write a program (only ascii characters) which
renames all files (including directories) in the current directory to versions with spaces removed or replaced b... | Here's a solution in Python for your requirement. The program recursively renames files and directories in the current directory by removing spaces or replacing them with underscores, handling collisions by appending a unique identifier.
**Language:** Python
**Score:** 179 characters
**Program:**
```python
import os... | [
{
"from": "human",
"value": "It is simple. I cannot stand when people use spaces when naming files. It sometimes wrecks console commands and makes the output of ls ugly.\nThe challenge is to write a program (only ascii characters) which\n\nrenames all files (including directories) in the current directory t... | codegolf |
Your mission, should you choose to accept it, is to input a series of point pairs that form a graph, like this:
A,B C,A B,A A,D A,E F,G C,G
You must then output an ASCII visualization of the graph.
For example, A,B C,A C,D could be:
A-----------------B
\
\
C---------D
Edit: As... | To create an ASCII visualization of a graph based on the provided edges, we can write a simple Python program that processes the edges, calculates positions for each node, and then renders them in ASCII format. Here's a code example that meets the specified requirements, handling up to 16 nodes and a maximum of 5 conne... | [
{
"from": "human",
"value": "Your mission, should you choose to accept it, is to input a series of point pairs that form a graph, like this:\n\nA,B C,A B,A A,D A,E F,G C,G\n\nYou must then output an ASCII visualization of the graph.\nFor example, A,B C,A C,D could be:\nA-----------------B\n \\ ... | codegolf |
Introduction
Knowledgeable code golfers prepared us for the doomsday flood. Areas at risk were evacuated, and the population moved to high ground.
We underestimated the flood (or perhaps there was a bug in @user12345's code). Some high-ground areas are rapidly approaching sea level. Walls must be erected in order to en... | To solve the problem of determining the minimum number of walls required to protect the encampment from rising water, we can use a breadth-first search (BFS) approach. The strategy involves simulating the flow of water from the edges of the map and marking areas that would be flooded if walls are not erected. We can th... | [
{
"from": "human",
"value": "Introduction\nKnowledgeable code golfers prepared us for the doomsday flood. Areas at risk were evacuated, and the population moved to high ground.\nWe underestimated the flood (or perhaps there was a bug in @user12345's code). Some high-ground areas are rapidly approaching sea ... | codegolf |
You mission today is to invent a text compressor.
Task
You'll write two functions:
The packer is a function that accepts a string of ASCII characters (U+0000 to U+007F) and outputs a Unicode string (U+0000 to U+10FFFF), containing the fewest characters possible.
The unpacker is a function that accepts an encoded Unico... | Here’s a solution that packs and unpacks ASCII strings using a predefined dictionary of common phrases/words, effectively reducing the size of the packed strings.
### Compression Functions
```python
# Predefined dictionary for packing
dictionary = {
"We're no strangers to love": "𐀀",
"You know the rules and ... | [
{
"from": "human",
"value": "You mission today is to invent a text compressor.\nTask\nYou'll write two functions:\n\nThe packer is a function that accepts a string of ASCII characters (U+0000 to U+007F) and outputs a Unicode string (U+0000 to U+10FFFF), containing the fewest characters possible.\nThe unpack... | codegolf |
The GolfScript language has one serious lack, no float or fixed point handling. Remedy this by creating a function F for converting an integer number, given as a string, to a string representing 1 / 10 000 000 000 of it's value. The function must handle both positive and negative values as well as leading 0s.
The follo... | In GolfScript, you can create the function F to convert an integer represented as a string to the desired format by following these steps:
1. First, handle the sign of the input and work with the absolute value of the number.
2. Then, divide the absolute value by 10,000,000,000 and process the resulting parts into the... | [
{
"from": "human",
"value": "The GolfScript language has one serious lack, no float or fixed point handling. Remedy this by creating a function F for converting an integer number, given as a string, to a string representing 1 / 10 000 000 000 of it's value. The function must handle both positive and negativ... | codegolf |
I'm very lazy so I try to always program my microwave with the fewest possible button presses. My microwave has the following buttons:
A "minute plus" button which may only be pressed first and implies "start". It may be pressed multiple times for multiple minutes, but it will not add a minute to a manually entered ... | To program your microwave with the fewest button presses for the specified time format (MM:SS), here is a breakdown of how to enter the times using the provided buttons:
1. **Using the "minute plus" button:**
- For times that can be expressed in whole minutes (e.g., 1:00, 2:00, etc.), you can use the "minute plus" ... | [
{
"from": "human",
"value": "I'm very lazy so I try to always program my microwave with the fewest possible button presses. My microwave has the following buttons:\n\nA \"minute plus\" button which may only be pressed first and implies \"start\". It may be pressed multiple times for multiple minutes, but ... | codegolf |
Hi guys, for my class I need to make a number square root but it
doesnt work !!HELLPP!
The challenge:
Write a function or program that will "make a number square root".
Note: This is code trolling. Give a "useful" answer to guide this new programmer on his/her way to programming success! Be creative!
| Hey there! It sounds like you're looking to create a function that can calculate the square root of a number. Don't worry, I'm here to help you on your programming journey! Let's explore this in a fun and informative way.
### Understanding Square Roots
First, let's clarify what a square root is. The square root of a ... | [
{
"from": "human",
"value": "\nHi guys, for my class I need to make a number square root but it\n doesnt work !!HELLPP!\n\nThe challenge:\nWrite a function or program that will \"make a number square root\". \n\nNote: This is code trolling. Give a \"useful\" answer to guide this new programmer on his/her w... | codegolf |
Read infinitely from stdin, and convert every number to the corresponding symbol on a US qwerty keyboard.
No string or character literals anywhere are permitted.
E.g. if the input is 117758326, the output is !!&&%*#@^.
Letters and symbols that aren't on numbers are left alone; 11g2;;'1g2311hh21930 turns into !!g@;;'!g... | Here's a Python script that achieves the desired functionality while adhering to your constraints. This code reads from standard input infinitely and replaces each number with the corresponding symbol on a US QWERTY keyboard.
```python
import sys
from itertools import cycle
m = {48: 41, 49: 33, 50: 64, 51: 35, 52: 36... | [
{
"from": "human",
"value": "Read infinitely from stdin, and convert every number to the corresponding symbol on a US qwerty keyboard. \nNo string or character literals anywhere are permitted.\nE.g. if the input is 117758326, the output is !!&&%*#@^.\nLetters and symbols that aren't on numbers are left alon... | codegolf |
Read input of up to 8 characters presented as hexadecimal number and print this number as decimal number. In case that input can not be presented as hexadecimal input it has to print 0
Rules:
It is not allowed to use any function that takes or returns strings/characters, beside function that reads string/char from inpu... | Certainly! Below is a minimal implementation in Python that reads up to 8 characters as a hexadecimal number and prints the corresponding decimal value. If the input is invalid for hexadecimal representation, it outputs 0.
```python
x=0
for i in range(8):
c=input()
if not('0'<=c<='9' or 'a'<=c<='f' or 'A'<=c<='F')... | [
{
"from": "human",
"value": "Read input of up to 8 characters presented as hexadecimal number and print this number as decimal number. In case that input can not be presented as hexadecimal input it has to print 0\nRules:\nIt is not allowed to use any function that takes or returns strings/characters, besid... | codegolf |
Take a string of binary characters separated by a space, and convert it to an ASCII string.
For example...
1001000 1100101 1101100 1101100 1101111 100000 1010111 1101111 1110010 1101100 1100100
Would convert to...
Hello World
This is a code-golf challenge so the shortest solution wins.
| Here's a short Python solution for the binary to ASCII conversion:
```python
print(''.join(chr(int(b, 2)) for b in input().split()))
```
You can use this code snippet in a Python interpreter. It reads a line of space-separated binary numbers from input, converts each to its ASCII character, and prints the resulting s... | [
{
"from": "human",
"value": "Take a string of binary characters separated by a space, and convert it to an ASCII string.\nFor example...\n1001000 1100101 1101100 1101100 1101111 100000 1010111 1101111 1110010 1101100 1100100\n\nWould convert to...\nHello World\n\nThis is a code-golf challenge so the shortes... | codegolf |
A simple one today. Write the shortest program that draws a "sawtooth alphabet" given a positive integer for the height. You must write the name of your programming language when you come to the letter it starts with.
For example, if your language is Python and the input is 1 the output should be:
ABCDEFGHIJKLMNOPython... | Here's a Python program that generates the "sawtooth alphabet" based on a given positive integer height:
```python
def sawtooth_alphabet(height):
alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
rows = [''] * height
for i in range(26):
row_index = i % height
rows[row_index] += alphabet[i] + ' '... | [
{
"from": "human",
"value": "A simple one today. Write the shortest program that draws a \"sawtooth alphabet\" given a positive integer for the height. You must write the name of your programming language when you come to the letter it starts with.\nFor example, if your language is Python and the input is 1... | codegolf |
Unsolved puzzle:
Solved Puzzle:
Rules
Each circle with number must have as many lines from it as the number
in the circle.
It is not allowed to have more than two lines between two circles.
The lines can not cross each other.
All the lines must either be horizontal or vertical. It is not allowed to draw lines diagon... | To solve the bridge puzzle as described, we need to build a program that reads the input file, processes the input to connect the circles as per the specified rules, and finally outputs the result in the required format.
Here’s a step-by-step outline to create this program:
### Step 1: Define the Input Format
The inp... | [
{
"from": "human",
"value": "Unsolved puzzle:\n\nSolved Puzzle:\n\nRules\n\nEach circle with number must have as many lines from it as the number\nin the circle.\nIt is not allowed to have more than two lines between two circles.\nThe lines can not cross each other.\nAll the lines must either be horizontal ... | codegolf |
Here is one more "Challenge"! Today i had a meeting with a friend, and mostly we are a little bit crazy.. He bets, that it is not possible to create a Fibonacci Sequence without using loops.
No static output like:
return "1, 2, 3, 5, 8, 13, ..";
GOAL / Requirements
Use only 1 int var
Return the first 5 (or more) num... | Sure! You can create a Fibonacci sequence using recursion. Since recursion uses the call stack as a mechanism to loop, it effectively allows you to create a Fibonacci sequence without explicit loops or static output. Here's a simple solution in Python that satisfies your requirements:
```python
def fibonacci(n=0, a=1,... | [
{
"from": "human",
"value": "Here is one more \"Challenge\"! Today i had a meeting with a friend, and mostly we are a little bit crazy.. He bets, that it is not possible to create a Fibonacci Sequence without using loops.\nNo static output like:\nreturn \"1, 2, 3, 5, 8, 13, ..\"; \n\nGOAL / Requirements\n\n... | codegolf |
As a little joke in the office someone wanted a script that randomly picks a name, and said person will make a round of drinks.
Let's call the people John, Jeff, Emma, Steve and Julie.
I thought it would be funny to make a script that seems random at a quick glance, but actually always gives the same person as the out... | Here's a playful script that always outputs the name "Jeff" while appearing to be random at a quick glance. We'll use a simple programming language like Python to demonstrate this.
```python
import random
def pick_name():
names = ["John", "Jeff", "Emma", "Steve", "Julie"]
# This function could look complex bu... | [
{
"from": "human",
"value": "As a little joke in the office someone wanted a script that randomly picks a name, and said person will make a round of drinks. \nLet's call the people John, Jeff, Emma, Steve and Julie.\nI thought it would be funny to make a script that seems random at a quick glance, but actua... | codegolf |
The contest is now over. Coward is the winner.
You can watch the last match here.
Suddenly zombies appear! OH NOES!
In this king-of-the-hill challenge, you must create a bot to survive the zombie apocalypse. Or at least, hold out for as long as possible.
At the start of the game, 50 instances of each entry will be ... | It looks like you have shared a description of a competitive bot programming challenge involving a zombie apocalypse scenario. The goal is to create a bot that can survive or outlast other bots and zombies within a specified play area. The bots must make decisions each turn to either move or shoot, while managing resou... | [
{
"from": "human",
"value": "\nThe contest is now over. Coward is the winner.\n You can watch the last match here.\n\nSuddenly zombies appear! OH NOES!\nIn this king-of-the-hill challenge, you must create a bot to survive the zombie apocalypse. Or at least, hold out for as long as possible.\nAt the start o... | codegolf |
Explanation
¡Hola! For those of you who don't take Spanish, a verb is conjugated based on the person who does the action. Here's a chart:
English Spanish
I Yo
You Tú
He Él
She Ella
You (formal) Uste... | Your explanation of Spanish verb conjugation is quite clear and accurate for someone learning the basics! Below is a simple Python function that takes a pronoun and an unconjugated verb, then returns the verb conjugated in the present tense according to the rules you've laid out:
```python
def conjugate(pronoun, verb)... | [
{
"from": "human",
"value": "Explanation\n¡Hola! For those of you who don't take Spanish, a verb is conjugated based on the person who does the action. Here's a chart:\nEnglish Spanish\nI Yo\nYou Tú\nHe Él\nShe ... | codegolf |
Your goal is to determine whether a given 2D point X lies within the area of the triangle with given vertices A,B,C.
Write a function that takes in the coordinates of the test point X and the three triangle vertices (so that's 8 coordinates total) and returns True if the point lies inside that triangle, and False if it... | Here is a Python function that determines whether a given point lies within the triangle defined by three vertices. The function takes input in the specified format: a list of four tuples where the first tuple is the test point, followed by the three vertices of the triangle.
```python
def point_in_triangle(p):
x1... | [
{
"from": "human",
"value": "Your goal is to determine whether a given 2D point X lies within the area of the triangle with given vertices A,B,C.\nWrite a function that takes in the coordinates of the test point X and the three triangle vertices (so that's 8 coordinates total) and returns True if the point ... | codegolf |
for loops are useful in python in many ways, but one of the most common usages associated with a for loop is it's ability to repeat a certain amount of times. Like this:
for times in range(50):
print "I'm repeating this 50 times..."
The challenge I propose to you is to make a for repeat forever. If you can find a ... | You can achieve an infinite loop in Python using a `for` loop combined with the `itertools` module. Below is an example code that works in Python 3.
Here's how you can do it:
```python
import itertools
for _ in itertools.count():
print("I'm repeating this forever...")
```
### Explanation:
1. **Import itertools... | [
{
"from": "human",
"value": "for loops are useful in python in many ways, but one of the most common usages associated with a for loop is it's ability to repeat a certain amount of times. Like this:\nfor times in range(50):\n print \"I'm repeating this 50 times...\"\n\nThe challenge I propose to you is t... | codegolf |
The Gray Code is a sequence of binary numbers of bitwidth n where successive numbers differ only in one bit (see example output).
Reference
Example input:
3
Example output:
000
001
011
010
110
111
101
100
Notes:
This question seems to have a dupe but it's not, for that question is not a code-golf, and it demands dif... | Here's a Python code snippet that generates the Gray Code sequence for a given bitwidth `n`:
```python
def gray_code(n):
return [bin(i ^ (i >> 1))[2:].zfill(n) for i in range(1 << n)]
n = 3
print(*gray_code(n), sep='\n')
```
### Explanation:
1. **Function Definition**: The `gray_code` function takes an integer ... | [
{
"from": "human",
"value": "The Gray Code is a sequence of binary numbers of bitwidth n where successive numbers differ only in one bit (see example output).\nReference\nExample input:\n3\n\nExample output:\n000\n001\n011\n010\n110\n111\n101\n100\n\nNotes:\n\nThis question seems to have a dupe but it's not... | codegolf |
Generic Lorem Ipsum:
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris felis
dolor, bibendum at tincidunt vel, imperdiet eget libero. Cras vel
felis purus. Phasellus a vestibulum enim. Sed eu orci ac nisl sodales
scelerisque in id mi. Duis et nunc et nisl blandit aliquet ornare sed
risus. Sed arc... | Sure! Here’s an expanded version of your Lorem Ipsum text, with additional phrases and embellishments:
---
**Lorem Ipsum Expanded**
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris felis dolor, bibendum at tincidunt vel, imperdiet eget libero. Cras vel felis purus, tincidunt eu volutpat nec, facilisis... | [
{
"from": "human",
"value": "Generic Lorem Ipsum:\n\nLorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris felis\n dolor, bibendum at tincidunt vel, imperdiet eget libero. Cras vel\n felis purus. Phasellus a vestibulum enim. Sed eu orci ac nisl sodales\n scelerisque in id mi. Duis et nunc et ni... | codegolf |
You are to write a program that does one of the following.
Only displays "Hello World" does nothing else
Quits and nothing else (no output, no errors.)
Takes one line of input, parses it as an integer, displays the first that many primes (or gives a nice error if it is given input that can't be parsed as an integer, o... | Here's a Python program that meets the criteria specified, performing one of the functions without revealing its purpose. The code is obfuscated to hide its functionality, and it relies on behavior that may be interpreted differently across platforms, which can offer some uncertainty.
```python
import random, sys
def... | [
{
"from": "human",
"value": "You are to write a program that does one of the following.\n\nOnly displays \"Hello World\" does nothing else\nQuits and nothing else (no output, no errors.)\nTakes one line of input, parses it as an integer, displays the first that many primes (or gives a nice error if it is gi... | codegolf |
Create an algorithm that uses Cramer's Rule (with determinants of matrices) to solve for the solutions of a system of linear equations. The code should work for an "n" number of variables.
You may use whatever data structure you want to hold the matrix and return the result
Note: Also, consider that a possible system ... | Here's a compact implementation of Cramer's Rule for solving a system of linear equations in Python. This version adheres to your requirements of using no built-in matrix operations, keeping the code as short as possible while still being understandable:
```python
def det(m):
if len(m) == 2: return m[0][0]*m[1][1]... | [
{
"from": "human",
"value": "Create an algorithm that uses Cramer's Rule (with determinants of matrices) to solve for the solutions of a system of linear equations. The code should work for an \"n\" number of variables. \nYou may use whatever data structure you want to hold the matrix and return the result\... | codegolf |
The functions receives 5 numbers, let's call them a, b, c, d and e
You must display two numbers.
First one is (((a + b) - c) * d) % e = f
Second one is (((a + b) - c) * d - f) / e
Input: Output:
7 5 9 3 8 1 1
1 2 3 4 5 0 0
19 25 9 7 11 3 22
21 12 99 3 13 -3 -15
21 12 99 3 -4 ... | To solve this problem without using the arithmetic operations `+`, `-`, `*`, and `/`, we can utilize bitwise operations and properties of numbers.
Here's a Python solution that adheres to your constraints:
```python
def add(x, y):
while y:
carry = x & y
x = x ^ y
y = carry << 1
return ... | [
{
"from": "human",
"value": "The functions receives 5 numbers, let's call them a, b, c, d and e\nYou must display two numbers.\nFirst one is (((a + b) - c) * d) % e = f\nSecond one is (((a + b) - c) * d - f) / e\nInput: Output:\n7 5 9 3 8 1 1\n1 2 3 4 5 0 0\n19 25 9 7 11 ... | codegolf |
The challenge is to implement a 2-dimensional ray tracing program, text-based.
Sources of white light are @ symbols. R, G and B are light filters. / and \ are mirrors with 80% reflectivity. ? is a light sensor. >, <, ^ and V combine light in the appropriate direction (e.g. if one red and one green came into a > the lig... | Here's a Python implementation of a 2-dimensional ray tracing program as you've described. The program simulates light rays from `@` light sources, interacts with filters, mirrors, light sensors, and combines colors at arrow symbols.
```python
def ray_tracer(input_text):
import numpy as np
# Convert input tex... | [
{
"from": "human",
"value": "The challenge is to implement a 2-dimensional ray tracing program, text-based.\nSources of white light are @ symbols. R, G and B are light filters. / and \\ are mirrors with 80% reflectivity. ? is a light sensor. >, <, ^ and V combine light in the appropriate direction (e.g. if ... | codegolf |
Important edit: Earlier, there was an incorrect value in Example 1. It has been fixed.
You are given a two-dimensional array in which each cell contains one of four values.
Examples:
1 2 2 2 2 1 @ . . X X V
1 3 1 4 1 4 e . @ I C V
2 3 1 3 4 2 H H @ X I V
1 4 4 2 1 3 ... | Here's a Python solution that identifies the direction each value in the grid represents, as well as the start and end points of the path formed by those values. The solution utilizes a depth-first search (DFS) approach to explore the grid.
```python
def find_path(grid):
from collections import defaultdict
... | [
{
"from": "human",
"value": "Important edit: Earlier, there was an incorrect value in Example 1. It has been fixed.\nYou are given a two-dimensional array in which each cell contains one of four values.\nExamples:\n1 2 2 2 2 1 @ . . X X V\n1 3 1 4 1 4 e . @ I C V\n2 3 1 3 4 2 ... | codegolf |
Your challenge is to take input like this (a Hello World program):
++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.
And output a prompt (which will be "> "):
>
The user can then enter anything at the prompt. Your simple debugger must have these commands:
S - ... | Here's a minimalistic implementation of a Brainfuck debugger based on the description you provided. This program reads a Brainfuck code, executes it while providing debugging commands, and handles input and output. It's implemented in Python for clarity and brevity.
```python
import sys
bf_code = input().strip()
code... | [
{
"from": "human",
"value": "Your challenge is to take input like this (a Hello World program):\n++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.\n\nAnd output a prompt (which will be \"> \"):\n>\n\nThe user can then enter anything at the prompt. You... | codegolf |
Write a script that works fine when a blank line is present in the flow of program logic, but breaks or causes unexpected behaviour when that line is removed.
Avoid standard loopholes and stupid answers. Your program should do something "useful," even if all it does is add a few integers.
Removing an empty line from a ... | Certainly! Here is a Python script that demonstrates a clear dependency on a blank line within its logic. This script calculates the sum of integers in a list, and removing the blank line causes unexpected behavior in how the list is processed.
### Script: `sum_integers.py`
```python
def sum_integers(numbers):
to... | [
{
"from": "human",
"value": "Write a script that works fine when a blank line is present in the flow of program logic, but breaks or causes unexpected behaviour when that line is removed.\nAvoid standard loopholes and stupid answers. Your program should do something \"useful,\" even if all it does is add a ... | codegolf |
You are required to find how many triangles are unique out of given triangles. For each triangle you are given three integers a,b,c , the sides of a triangle.
A triangle is said to be unique if there is no other triangle with same set of sides.
Note : It is always possible to form triangle with given sides.
INPUT:
Firs... | To solve the problem of counting unique triangles from a given list of triangles defined by their sides, we can use the following approach:
1. **Normalize the Sides**: Since the order of sides does not matter for a triangle, we can represent each triangle by a sorted tuple of its sides. For example, the triangle with ... | [
{
"from": "human",
"value": "You are required to find how many triangles are unique out of given triangles. For each triangle you are given three integers a,b,c , the sides of a triangle.\nA triangle is said to be unique if there is no other triangle with same set of sides.\nNote : It is always possible to ... | codegolf |
You are given a directed graph in an adjacency dictionary format. This can be whatever format is most natural for your language. For instance, in python, this would be a dictionary with keys of nodes and values which are lists of nodes which that node has an edge to. For instance:
G={1: [2, 3], 2: [3], 3: [1], 4:[2]}
... | Here's a concise implementation of a function to find all nodes reachable from a starting node in a directed graph represented as an adjacency dictionary in Python:
```python
def R(G, s):
visited, stack = set(), [s]
while stack:
node = stack.pop()
if node not in visited:
visited.add... | [
{
"from": "human",
"value": "You are given a directed graph in an adjacency dictionary format. This can be whatever format is most natural for your language. For instance, in python, this would be a dictionary with keys of nodes and values which are lists of nodes which that node has an edge to. For instan... | codegolf |
You are paddling a canoe down a fairly fast whitewater river. Suddenly, your paddles explode, and you find yourself in a dangerous situation hurtling down a river rapid without any paddles. Luckily, you still have your programming skills, so you decide to carve a program on the side of your canoe to help you survive th... | Here's a short Python program to calculate the probability of the canoe finishing at a specified column in a given river grid configuration. This program implements a simulation approach and is kept concise for code golf:
```python
import sys
from collections import defaultdict
c=defaultdict(float)
c[4,0]=1
for i in ... | [
{
"from": "human",
"value": "You are paddling a canoe down a fairly fast whitewater river. Suddenly, your paddles explode, and you find yourself in a dangerous situation hurtling down a river rapid without any paddles. Luckily, you still have your programming skills, so you decide to carve a program on the ... | codegolf |
A program should take an input on stdin, and guess what a word might be. It should run as a session. One example session is shown below. Characters are fed to it, with a * for a letter not revealed; it should remember letters already revealed. It shows possible words in a list if the total number words found is less th... | Certainly! Below is a Python program that implements the session you described. It reads words from a dictionary file (like `/usr/share/dict/words`), and allows users to input partial words, while keeping track of already revealed letters. The program displays matching words based on the given input.
You can save this... | [
{
"from": "human",
"value": "A program should take an input on stdin, and guess what a word might be. It should run as a session. One example session is shown below. Characters are fed to it, with a * for a letter not revealed; it should remember letters already revealed. It shows possible words in a list i... | codegolf |
The goal of a Rosetta Stone Challenge is to write solutions in as many languages as possible. Show off your programming multilingualism!
The Challenge
Your challenge is to implement a program that will map some genes using cross-over frequencies, in as many programming languages as possible. You are allowed to use any ... | Here are implementations of the gene mapping problem in a variety of programming languages. Each implementation takes input as specified in the challenge and outputs a gene map based on the given crossover frequencies.
### Python
```python
import sys
from collections import defaultdict, deque
def gene_mapping(pairs):... | [
{
"from": "human",
"value": "The goal of a Rosetta Stone Challenge is to write solutions in as many languages as possible. Show off your programming multilingualism!\nThe Challenge\nYour challenge is to implement a program that will map some genes using cross-over frequencies, in as many programming languag... | codegolf |
My dog is barking at me, but I'm too lazy to take him for a walk. I have an idea! I'll get the people at Code Golf to do it for me!
Your challenge is to simulate a dog's walk. Here are the rules for walking the dog:
The human (H) will start at 0,0 on a (Cartesian) coordinate plane, and will randomly go one space eithe... | Here's a Python solution that simulates the described dog walking scenario in a minimal code format. This code uses the random module to generate movements for the human and dog according to the specified rules.
```python
import random,math
def walk(dur, leash):
h, d = [0, 0], [0, 0]
print(f'H({h[0]},{h[1]}) ... | [
{
"from": "human",
"value": "My dog is barking at me, but I'm too lazy to take him for a walk. I have an idea! I'll get the people at Code Golf to do it for me!\nYour challenge is to simulate a dog's walk. Here are the rules for walking the dog:\n\nThe human (H) will start at 0,0 on a (Cartesian) coordinate... | codegolf |
Write a function/subroutine to sort a list of integers, Tower of Hanoi style.
You will be given a stack of integers. This is the main stack.
You are also given two more helper stacks. These helper stacks have a unique property though: every element must be smaller than or the same size as the element underneath it. Th... | To sort a stack of integers in place using a Tower of Hanoi-style approach with two helper stacks, we need to carefully manage the movement of elements between the stacks while adhering to the constraints placed on the helper stacks (they can only contain elements that are the same size or smaller than the one below th... | [
{
"from": "human",
"value": "Write a function/subroutine to sort a list of integers, Tower of Hanoi style.\nYou will be given a stack of integers. This is the main stack. \nYou are also given two more helper stacks. These helper stacks have a unique property though: every element must be smaller than or the... | codegolf |
In light of the 2014 Australian Open in Melbourne, and the win by Stanislas Wawrinka against Novak Djokovic, I propose the following code golf challenge!
Wawrinka and Djokovic are at it again for the basis of this CGC. Your challenge is to take a string consisting of 1's and 2's and determine the tennis scores based on... | Here's a Python implementation that meets the specifications you've described in your tennis scoring challenge. The code processes a string of points and calculates the scores accordingly, displaying them in the required format.
```python
s="1211222122111122111"
w, d, gs, g, s1, s2, c1, c2, b = 0, 0, 0, 0, 0, 0, 0, 0,... | [
{
"from": "human",
"value": "In light of the 2014 Australian Open in Melbourne, and the win by Stanislas Wawrinka against Novak Djokovic, I propose the following code golf challenge!\nWawrinka and Djokovic are at it again for the basis of this CGC. Your challenge is to take a string consisting of 1's and 2'... | codegolf |
xxd is a utility, bundled with vim, that has been used to encode answers to code golf problems on this site. It converts a binary file into a hex dump and back again.
Implement the xxd and xxd -r commands in the programming language(s) of your choice. Scoring is based on the character/byte lengths of a) your program(s)... | Here's a solution to implement the `xxd` and `xxd -r` commands in Python, adhering to the specified format.
### Combined Program in Python
This solution combines both the hex dump (`xxd`) and the reverse operation (`xxd -r`). The program will read from standard input and determine whether to encode or decode based on... | [
{
"from": "human",
"value": "xxd is a utility, bundled with vim, that has been used to encode answers to code golf problems on this site. It converts a binary file into a hex dump and back again.\nImplement the xxd and xxd -r commands in the programming language(s) of your choice. Scoring is based on the ch... | codegolf |
Create a deterministic program to play nd tic-tac-toe with the other contestants.
Your program should work when n (width) and d (dimension number) are in these ranges:
n∈[3,∞)∩ℕ ie a natural number greater than 2
d∈[2,∞)∩ℕ ie a natural number greater than 1
n = 3; d = 2 (32 ie 3 by 3):
[][][]
[][][]
[][][]
n = 3; ... | Below is a Python implementation of a deterministic program that plays n-dimensional tic-tac-toe. The program reads the game configuration and existing moves from standard input, and then outputs its own move in the same format.
The implementation includes a basic strategy for choosing moves, ensuring it does not mak... | [
{
"from": "human",
"value": "Create a deterministic program to play nd tic-tac-toe with the other contestants. \nYour program should work when n (width) and d (dimension number) are in these ranges:\nn∈[3,∞)∩ℕ ie a natural number greater than 2\nd∈[2,∞)∩ℕ ie a natural number greater than 1\n\nn = 3; d = 2... | codegolf |
Alice and Bob like to play a card game, with a deck of cards numbered with consecutive nonnegative integers.
Alice has a very particular way of shuffling the deck, though. First, she takes the top card from the deck and puts it at the bottom of the deck. Then she removes the next card, and starts a pile with it. Then, ... | To solve this problem, we can simulate the shuffling process to find the correct order that Eve should set up the deck in, so that after Alice's shuffling, the cards end up in the desired order (0, 1, 2, ..., n-1).
We will reverse-engineer the shuffle process. The key insight is that if we understand how the shuffle ... | [
{
"from": "human",
"value": "Alice and Bob like to play a card game, with a deck of cards numbered with consecutive nonnegative integers.\nAlice has a very particular way of shuffling the deck, though. First, she takes the top card from the deck and puts it at the bottom of the deck. Then she removes the ne... | codegolf |
Your boss asks you to write a "hello world" program. Since you get paid for lines of code, you want to make it as complex as possible. However if you just add nonsense lines, or obviously useless or obfuscating stuff, you will never get it through code review. Therefore the challenge is:
Write a "hello world" program w... | Here is a complex "Hello World" program in Python. I will provide justifications for each line of code, ensuring that the complexity can be defended under the guidelines of best practices, maintainability, and modern programming paradigms.
### Code:
```python
# Module imports
import logging # 1 point (module import) ... | [
{
"from": "human",
"value": "Your boss asks you to write a \"hello world\" program. Since you get paid for lines of code, you want to make it as complex as possible. However if you just add nonsense lines, or obviously useless or obfuscating stuff, you will never get it through code review. Therefore the ch... | codegolf |
Given a list of scores (non-negative integers) pre-sorted from greatest to least:
[ 10, 10, 6, 6, 4, 0]
Assign each score an integer rank, beginning with 1 and ascending, such that equal scores have the same rank (i.e. they are tied):
[ 1, 1, 3, 3, 5, 6 ]
In the case of ties, ranks are "skipped," e.g. since the f... | Here's a Python solution to assign ranks to the given scores according to the specified rules. This code is concise and effectively calculates the ranks while accounting for ties.
```python
def ranks(scores):
rank = 1
last_score = None
ranks = []
for score in scores:
if score != last_score:
... | [
{
"from": "human",
"value": "\nGiven a list of scores (non-negative integers) pre-sorted from greatest to least:\n[ 10, 10, 6, 6, 4, 0]\n\nAssign each score an integer rank, beginning with 1 and ascending, such that equal scores have the same rank (i.e. they are tied):\n[ 1, 1, 3, 3, 5, 6 ]\n\nIn the cas... | codegolf |
A subsequence is a sequence that can be derived from another sequence by deleting some elements without changing the order of the remaining elements.
Given three strings A, B and C (note the order) as input, find the length of the longest string S such that:
Condition 1: S is a subsequence of A
Condition 2: S is a sub... | To solve this problem, we need to find the longest string \( S \) that is a subsequence of both strings \( A \) and \( B \), while also ensuring that string \( C \) is a substring of \( S \).
Here's the concise code to achieve this in Python:
```python
def longest_subsequence_with_substring(A, B, C):
lenA, lenB, ... | [
{
"from": "human",
"value": "A subsequence is a sequence that can be derived from another sequence by deleting some elements without changing the order of the remaining elements.\nGiven three strings A, B and C (note the order) as input, find the length of the longest string S such that:\n\nCondition 1: S i... | codegolf |
I'm work on a problem which I set myself for fun, which is to create a python script which prints the even numbers from 0 to 100. The challenge is to make the script as small as possible. This is what I have so far:
for x in range(0, 101):
if (x % 2 == 0):
print x
Currently it is 60 bytes. Can anyone think... | Your solution of using `print(*range(2,101,2),sep='\n')` is already quite compact at 30 bytes. However, if you want to shave off a few more bytes, you can use the following variation:
```python
print(*range(0,101,2),sep='\n')
```
This one-liner is also 30 bytes, but it starts from 0, which matches your original requi... | [
{
"from": "human",
"value": "I'm work on a problem which I set myself for fun, which is to create a python script which prints the even numbers from 0 to 100. The challenge is to make the script as small as possible. This is what I have so far:\nfor x in range(0, 101):\n if (x % 2 == 0):\n print x... | codegolf |
Given list of integers {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4}.
For those who interested these numbers are used in weekday calculation.
Weekday = (m[n] + d + y + y>>2 + y/400 - y/100) % 7;, where m[n] - expression I'm searching, d - day of month, y - year - (month <= 2).
Construct expression consisting of arithmetic, logi... | To create an expression that will return a value \( m \) such that \( m \mod 7 \) equals \( n \)-th number from the provided list \{0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4\}, we can analyze the values and come up with a suitable formula.
The given list is:
- Index 0: 0
- Index 1: 3
- Index 2: 2
- Index 3: 5
- Index 4: 0
... | [
{
"from": "human",
"value": "Given list of integers {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4}.\nFor those who interested these numbers are used in weekday calculation.\nWeekday = (m[n] + d + y + y>>2 + y/400 - y/100) % 7;, where m[n] - expression I'm searching, d - day of month, y - year - (month <= 2).\nConstru... | codegolf |
Write a function that contains five lines.
If you run the function as-is, it should return 0.
If you remove any one of the five lines and run the function, it should tell you which of the lines has been removed (e.g., if you remove the final line it should return 5).
Brevity, novelty, and elegance all deserve considera... | You can create a function in Python that adheres to your requirements by using the following code:
```python
def check_lines():
return (lambda x: x() if x else 0)(check_lines.__code__.co_code.count(10) - 5)
```
### Explanation:
1. The function `check_lines()` returns `0` when executed normally.
2. The `lambda` fu... | [
{
"from": "human",
"value": "Write a function that contains five lines.\nIf you run the function as-is, it should return 0.\nIf you remove any one of the five lines and run the function, it should tell you which of the lines has been removed (e.g., if you remove the final line it should return 5).\nBrevity,... | codegolf |
An old Chinese poem goes:
一百饅頭一百僧，
大僧三個更無爭，
小僧三人分一個，
大小和尚得幾丁？
When translated into English, this math problem reads:
100 buns and 100 monks,
Big monks eat 3 buns with no shortage,
Little monks share one bun among three,
Big and little monks, how many are there?
Once again, like in the cow and chicken... | Certainly! Below is a concise Python program that solves the problem using the given inputs. It checks for a unique nonnegative integer solution for the number of big monks (`l`) and small monks (`s`).
```python
b, m, bl, ms = map(int, input().split())
for l in range(m + 1):
s = m - l
if l * bl + (s + 2) // m... | [
{
"from": "human",
"value": "An old Chinese poem goes:\n\n一百饅頭一百僧，\n 大僧三個更無爭，\n 小僧三人分一個，\n 大小和尚得幾丁？\n\nWhen translated into English, this math problem reads:\n\n100 buns and 100 monks, \n Big monks eat 3 buns with no shortage, \n Little monks share one bun among three, \n Big and little monks, how man... | codegolf |
In this challenge, you will take an input image and crop it to make a square, leaving only the central part of the input image.
The answers must work with landscape, portrait, or square input images. The width of the output image should be equal to the shortest side of the input image e.g. the result of a 200x300 image... | Here's a concise Python solution for the image cropping challenge, using the Pillow library:
```python
from PIL import Image
img = Image.open('input.jpg')
w, h = img.size
s = min(w, h)
img.crop(((w-s)//2,(h-s)//2,(w+s)//2,(h+s)//2)).save('output.jpg')
```
### How It Works:
1. The code imports the `Image` module from ... | [
{
"from": "human",
"value": "In this challenge, you will take an input image and crop it to make a square, leaving only the central part of the input image.\nThe answers must work with landscape, portrait, or square input images. The width of the output image should be equal to the shortest side of the inpu... | codegolf |
I would like to see the shortest expression to calculate the days (or the last day) of a month in any language.
Considering y as the number of year and m as month.
Basic rules
without date / time functions.
considering leap years.
there is not other rule.
| To calculate the last day of a month given a year (`y`) and a month (`m`) without using date/time functions, you can use a simple conditional approach. Below are examples in a few programming languages. The key is to consider the months with 31, 30, and February with adjustments for leap years.
### Python
```python
de... | [
{
"from": "human",
"value": "I would like to see the shortest expression to calculate the days (or the last day) of a month in any language.\nConsidering y as the number of year and m as month.\nBasic rules\n\nwithout date / time functions.\nconsidering leap years.\nthere is not other rule.\n\n"
},
{
... | codegolf |
You already know that the atoi function of stdlib.h converts a string to an integer.
atoi
(copied from here)
int atoi (const char * str);
Convert string to integer
Parses the C-string str interpreting its content as an integral number, which is returned as a value of type int.
Example
#include <stdio.h> /* pri... | Here's a simple implementation of the `atoi` function in C that handles negative integers and aims to be concise:
```c
#include <stdio.h>
int my_atoi(const char *str) {
int result = 0, sign = 1;
// Skip whitespace
while (*str == ' ') str++;
// Handle optional sign
if (*str == '-') {
sign... | [
{
"from": "human",
"value": "You already know that the atoi function of stdlib.h converts a string to an integer.\natoi\n(copied from here)\n int atoi (const char * str);\n\n\nConvert string to integer\nParses the C-string str interpreting its content as an integral number, which is returned as a value of t... | codegolf |
As I have seen many questions asking tips for golfing in their interested language, I decided to ask for my favorite language: Groovy. People can give some tips and tricks that will be used in golfing with Groovy.
| Certainly! While Groovy is a programming language, I can provide some tips for golfing in Groovy. Golfing, in the context of programming, generally refers to the practice of writing code in as few characters as possible. Here are some tips and tricks to help you golf in Groovy:
### Tips for Golfing in Groovy
1. **Use... | [
{
"from": "human",
"value": "As I have seen many questions asking tips for golfing in their interested language, I decided to ask for my favorite language: Groovy. People can give some tips and tricks that will be used in golfing with Groovy.\n"
},
{
"from": "gpt",
"value": "Certainly! While Gro... | codegolf |
Create a piece of code and a genuinely-looking test for it. However, the test must be flaky: when run multiple times, it must sometimes fail, sometimes succeed.
Be creative and try to hide the flakiness as much as possible. The most popular answer in (at least) 10 days wins.
| Certainly! Below is an example of a simple Python function along with a test that exhibits flaky behavior. The test relies on a random condition to determine success or failure, which makes it flaky.
### Flaky Code Example
```python
import random
def add_numbers(a, b):
"""
Adds two numbers together.
"""
... | [
{
"from": "human",
"value": "Create a piece of code and a genuinely-looking test for it. However, the test must be flaky: when run multiple times, it must sometimes fail, sometimes succeed.\nBe creative and try to hide the flakiness as much as possible. The most popular answer in (at least) 10 days wins.\n"... | codegolf |
Your task is to write a file which contains a line with many pep8 violations.
The rules:
We use pep8 version 1.5.7 and the default settings.
Calling pep8 with other command line options or using a custom rc file is not allowed.
Maximum line length 120 characters. You can violate E501, sure, but the line which yo... | Here is an example of a Python file that contains multiple PEP 8 violations, adhering to the specified rules:
```python
# This is a comment
def my_function(): return "This is a very long line that definitely exceeds the maximum line length allowed by PEP 8 and will result in multiple violations including E501, E701 an... | [
{
"from": "human",
"value": "Your task is to write a file which contains a line with many pep8 violations. \nThe rules:\n\nWe use pep8 version 1.5.7 and the default settings. \nCalling pep8 with other command line options or using a custom rc file is not allowed. \nMaximum line length 120 characters. You... | codegolf |
Write a code golf task such that
The only input (if any) required by the task is text from standard input, and the only output required by the task is text to standard output.
There is exactly one correct output string of characters for every possible legal input as defined by the task.
Each possible legal input is le... | ## Code Golf Task: Reverse a String
### Task Description:
Given a string of text input from standard input, your task is to reverse the string and output the reversed string to standard output.
### Input:
- The input will be a single line of text (maximum length of 9999 characters).
### Output:
- The output should ... | [
{
"from": "human",
"value": "Write a code golf task such that\n\nThe only input (if any) required by the task is text from standard input, and the only output required by the task is text to standard output.\nThere is exactly one correct output string of characters for every possible legal input as defined ... | codegolf |
Today computers use millions of bytes of memory, and decimal or hexadecimal notations get less and less informative.
Most human-readable formatting just display the number with the highest unit prefix. What about the rest?
I devised a notation that I use for myself, and since then, I'm often faced with re-implementing ... | That sounds like a fascinating approach to representing large integers with a human-readable format, specifically tuned for memory representation! I can help you implement this in a programming language of your choice, as well as discuss how the representation works in more detail.
Here's a Python implementation that... | [
{
"from": "human",
"value": "Today computers use millions of bytes of memory, and decimal or hexadecimal notations get less and less informative.\nMost human-readable formatting just display the number with the highest unit prefix. What about the rest?\nI devised a notation that I use for myself, and since ... | codegolf |
I wrote some perl to sort by debian package version number (specification here). Whilst readable, it was disappointingly long (114 lines, 2042 characters) - shocking. So this challenge is to produce the shortest program (in perl or otherwise) which takes debian package version numbers on STDIN separated by \n, sorts th... | Here is a concise Perl solution that sorts Debian package version numbers according to the Debian version sorting rules. The code is compact, utilizing a minimal number of lines while adhering to the given specifications.
```perl
#!/usr/bin/perl
use strict;
use warnings;
print join("\n", sort {
my @a = split /[-:... | [
{
"from": "human",
"value": "I wrote some perl to sort by debian package version number (specification here). Whilst readable, it was disappointingly long (114 lines, 2042 characters) - shocking. So this challenge is to produce the shortest program (in perl or otherwise) which takes debian package version n... | codegolf |
I am looking for either suggestions or examples of more famous sayings written in code! If you have a website or database of them, please link that below your favorite one!
Examples:
while(!(succeed = try()))
if(lifegivesyou == lemons) {makelemonade();)
| Here are some famous sayings reimagined in code:
1. **"To be or not to be."**
```python
if (existence == "True"):
print("To be.")
else:
print("Not to be.")
```
2. **"The only thing we have to fear is fear itself."**
```javascript
if (fear) {
console.log("Fear is the only thing w... | [
{
"from": "human",
"value": "I am looking for either suggestions or examples of more famous sayings written in code! If you have a website or database of them, please link that below your favorite one!\nExamples:\nwhile(!(succeed = try()))\n\n\nif(lifegivesyou == lemons) {makelemonade();)\n\n"
},
{
... | codegolf |
The year is 930, and the Gregorian Church is having a problem. They have thousands of pages of chant music, but the problem is that all the sheet music was simply thrown onto a pile instead of having any real organisation system:
Image by user gamerprinter at Cartographers' Guild.
The Church needs to organise all the ... | Here's a solution to the problem you've described, written in Python, and optimized for brevity:
```python
s=input().split(',');n='C C# D D# E F F# G G# A A# B'.split();d=[2,1,2,2,2,1];t=lambda x:(n[x]+','+''.join(n[(x+sum(d[:i]))%12]for i in range(6))).split(',')[0];[print(t(i))for i in range(12)if all(j in t(i)for j... | [
{
"from": "human",
"value": "The year is 930, and the Gregorian Church is having a problem. They have thousands of pages of chant music, but the problem is that all the sheet music was simply thrown onto a pile instead of having any real organisation system:\n\nImage by user gamerprinter at Cartographers' G... | codegolf |
I just submitted an answer to this question, and then looked about at some news stories about the MegaMillions lottery craze going on right now in the US. This news article stated that an individual purchased $20,000 worth of tickets at one time (that's 20,000 sets of numbers to confirm!) to try and test their luck.
Th... | Here's a solution for the MegaMillions lottery problem in Python, adhering to the constraints of the challenge as closely as possible. The code aims for brevity while ensuring the functionality you specified. Here's the implementation:
```python
def lottery_winnings(input_data):
payouts = { (5, 1): 1_000_000, (5, ... | [
{
"from": "human",
"value": "I just submitted an answer to this question, and then looked about at some news stories about the MegaMillions lottery craze going on right now in the US. This news article stated that an individual purchased $20,000 worth of tickets at one time (that's 20,000 sets of numbers to... | codegolf |
Out of all of the ASCII characters, it is easy to tell that some of them form groups that are rotations of the same basic character. For example, V > ^ <. This allows the possibility to construct ASCII art that can be rotated by multiples of 90 degrees and still remain ASCII art.
The Challenge
Your goal is to golf a pr... | Here's a Python program that accomplishes the ASCII art rotation task as described. The program reads the ASCII art and the rotation degree from standard input and outputs the rotated art accordingly.
```python
def rotate_90(char):
return {
' ': ' ',
'+': '+',
'@': '@',
'X': 'X',
... | [
{
"from": "human",
"value": "Out of all of the ASCII characters, it is easy to tell that some of them form groups that are rotations of the same basic character. For example, V > ^ <. This allows the possibility to construct ASCII art that can be rotated by multiples of 90 degrees and still remain ASCII art... | codegolf |
The goal is to write a program (anything except explicit brainfuck) which prints Barney Stinson's best rule:
New is always better.
when interpreted normally, but
Legen... wait for it... dary!
When processed with a Brainfuck interpreter.
May the most popular bro win. You have 72 hours to be legendary.
| You can achieve this goal by writing a simple program in Python. The program will print "New is always better." when executed normally, and it will also generate Brainfuck code that outputs "Legen... wait for it... dary!" when interpreted by a Brainfuck interpreter.
Here’s the Python program that accomplishes this:
`... | [
{
"from": "human",
"value": "The goal is to write a program (anything except explicit brainfuck) which prints Barney Stinson's best rule:\n\nNew is always better.\n\nwhen interpreted normally, but\n\nLegen... wait for it... dary!\n\nWhen processed with a Brainfuck interpreter.\nMay the most popular bro win.... | codegolf |
I'm solving task, where:
Input:
A number as an integer.
Output:
The closest greater palindromic prime as an integer.
I would appreciate hints how to make my solution shorter. Or directions if change of approach would be beneficial.
golf=lambda l,r=range:next(x for x in r(10**6)if(x==int(`x`[::-1]))&all(x%d for d in r(2... | Your code for finding the closest greater palindromic prime is quite clever, but there are a few things we can do to shorten it and potentially optimize it.
### Insights and Suggestions for Improvement
1. **Conciseness with Built-in Functions**: Instead of using string manipulation with backticks (which is Python 2 ... | [
{
"from": "human",
"value": "I'm solving task, where:\nInput:\nA number as an integer.\nOutput:\nThe closest greater palindromic prime as an integer.\nI would appreciate hints how to make my solution shorter. Or directions if change of approach would be beneficial.\ngolf=lambda l,r=range:next(x for x in r(1... | codegolf |
Given three number values - being the Red, Green, and Blue elements of a colour (eight bits per channel, 0 to 255) - your program must output the name of the given colour.
For example;
Input: 255, 0, 0
Output: Red
or;
Input: 80, 0, 0
Output: Dark Red
This is a popularity contest, so whichever answer has the most... | To determine the name of a color based on its RGB values, you can follow a set of predefined ranges for colors. Below is a simple programmatic approach in Python that can help you categorize colors. You can expand this list or adjust the thresholds based on your own requirements.
```python
def get_color_name(r, g, b):... | [
{
"from": "human",
"value": "Given three number values - being the Red, Green, and Blue elements of a colour (eight bits per channel, 0 to 255) - your program must output the name of the given colour.\nFor example; \nInput: 255, 0, 0 \nOutput: Red\n\nor;\nInput: 80, 0, 0\nOutput: Dark Red\n\nThis is a po... | codegolf |
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