problem stringlengths 16 14k | reasoning stringlengths 832 133k | conversations listlengths 2 2 |
|---|---|---|
The Chef likes to stay in touch with his staff. So, the Chef, the head server, and the sous-chef all carry two-way transceivers so they can stay in constant contact. Of course, these transceivers have a limited range so if two are too far apart, they cannot communicate directly.
The Chef invested in top-of-the-line t... | Okay, let's see. I need to solve this problem where three people (Chef, head server, sous-chef) have transceivers that can communicate directly if within R meters. If not, but there's a third person acting as a bridge, then they can still communicate. The goal is to check if all three can communicate with each other, p... | [
{
"from": "human",
"value": "The Chef likes to stay in touch with his staff. So, the Chef, the head server, and the sous-chef all carry two-way transceivers so they can stay in constant contact. Of course, these transceivers have a limited range so if two are too far apart, they cannot communicate directly.... |
Frank explained its friend Felman the algorithm of Euclides to calculate the GCD
of two numbers. Then Felman implements it algorithm
int gcd(int a, int b)
{
if (b==0)
return a;
else
return gcd(b,a%b);
}
and it proposes to Frank that makes it
but with a little integer and another integer that has up to 250 d... | Okay, let's tackle this problem. So the task is to compute the GCD of two numbers, A and B. But here's the catch: A is a regular integer (up to 40000), but B can be a very large number with up to 250 digits. The standard Euclidean algorithm uses modulo operations, but when B is that big, we can't compute B mod A direct... | [
{
"from": "human",
"value": "Frank explained its friend Felman the algorithm of Euclides to calculate the GCD \nof two numbers. Then Felman implements it algorithm \n\n\nint gcd(int a, int b)\n{\n\tif (b==0)\n\t\treturn a;\n\telse\n\t\treturn gcd(b,a%b);\n}\n\nand it proposes to Frank that makes it \nbut wi... |
A Little Elephant from the Zoo of Lviv likes lucky strings, i.e., the strings that consist only of the lucky digits 4 and 7.
The Little Elephant calls some string T of the length M balanced if there exists at least one integer X (1 ≤ X ≤ M) such that the number of digits 4 in the substring T[1, X - 1] is equal to the n... | Okay, I need to solve this problem where I have to find the number of balanced substrings in a given string of 4s and 7s. Let's see what the problem says.
A balanced substring T of length M is one where there's at least one X between 1 and M such that the number of 4s in T[1..X-1] equals the number of 7s in T[X..M]. H... | [
{
"from": "human",
"value": "A Little Elephant from the Zoo of Lviv likes lucky strings, i.e., the strings that consist only of the lucky digits 4 and 7.\nThe Little Elephant calls some string T of the length M balanced if there exists at least one integer X (1 ≤ X ≤ M) such that the number of digits 4 in t... |
"Given a string s. Can you make it a palindrome by deleting exactly one character? Note that size of(...TRUNCATED) | "Okay, I need to solve this problem where for each given string, I have to determine if deleting exa(...TRUNCATED) | [{"from":"human","value":"Given a string s. Can you make it a palindrome by deleting exactly one cha(...TRUNCATED) |
"An established group of scientists are working on finding solution to NP hard problems. They claim (...TRUNCATED) | "Okay, I need to solve this subset sum problem. Let's think about how to approach it. The problem st(...TRUNCATED) | [{"from":"human","value":"An established group of scientists are working on finding solution to NP h(...TRUNCATED) |
"Let's call a string a phone number if it has length 11 and fits the pattern \"8xxxxxxxxxx\", where (...TRUNCATED) | "Okay, let's see. The problem is about determining the maximum number of phone numbers we can create(...TRUNCATED) | [{"from":"human","value":"Let's call a string a phone number if it has length 11 and fits the patter(...TRUNCATED) |
"You are given q queries in the following form:\n\nGiven three integers l_i, r_i and d_i, find minim(...TRUNCATED) | "Okay, let's see. I need to solve this problem where for each query with l, r, d, I have to find the(...TRUNCATED) | [{"from":"human","value":"You are given q queries in the following form:\n\nGiven three integers l_i(...TRUNCATED) |
"An array of integers p_{1},p_{2}, …,p_{n} is called a permutation if it contains each number from(...TRUNCATED) | "Okay, I need to solve this problem where given the array s, I have to restore the original permutat(...TRUNCATED) | [{"from":"human","value":"An array of integers p_{1},p_{2}, …,p_{n} is called a permutation if it (...TRUNCATED) |
"This is the easier version of the problem. In this version 1 ≤ n, m ≤ 100. You can hack this pr(...TRUNCATED) | "Okay, let's try to figure out how to solve this problem. So, the task is, given a sequence of integ(...TRUNCATED) | [{"from":"human","value":"This is the easier version of the problem. In this version 1 ≤ n, m ≤ (...TRUNCATED) |
"There are n points on a coordinate axis OX. The i-th point is located at the integer point x_i and (...TRUNCATED) | "Okay, let's try to figure out how to solve this problem. The task is to compute the sum of the mini(...TRUNCATED) | [{"from":"human","value":"There are n points on a coordinate axis OX. The i-th point is located at t(...TRUNCATED) |
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