messages list |
|---|
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Hooray! Polycarp turned n years old! The Technocup Team sincerely congratulates Polycarp!\n\nPolycarp celebrated all of his n birthdays: from the 1-th to the n-th. At the moment, he is wondering: how m... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, let's see. I need to find the coordinates of a house that satisfies certain distance ratios based on the given a and b values. Hmm. L... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "This is an interactive problem.\n\nYou are given a tree — connected undirected graph without cycles. One vertex of the tree is special, and you have to find which one. You can ask questions in the foll... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Housing maker Yamada House has launched a new featured product, a land for sale in a green home town with a rich environment such as schools and hospitals. This lot is divided into multiple lots and yo... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a python function to find the length of the longest nondecreasing subsequence in a given list of numbers.\n\nSolve the problem starting with the provided function header.\n\nFunction header:\n```... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "You have just completed a brave journey to see The Wizard of Odds, who agrees to grant you any wish, so long as you can complete the following puzzle:\n\nThe Wizard starts by telling you two integers: ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, I need to solve this programming problem. Let's read the problem statement carefully.\n\nSo, the task is to find the number of pairs ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, let's see. I need to find the minimum number of moves to reduce a number N to zero. The allowed operations are either splitting into ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "While Patrick was gone shopping, Spongebob decided to play a little trick on his friend. The naughty Sponge browsed through Patrick's personal stuff and found a sequence a1, a2, ..., am of length m, co... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "This is an interactive problem.\n\nThis is a hard version of the problem. The difference from the easy version is that in the hard version 1 ≤ t ≤ min(n, 10^4) and the total number of queries is limite... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "In a kindergarten, the children are being divided into groups. The teacher put the children in a line and associated each child with his or her integer charisma value. Each child should go to exactly o... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Implement a class `Rectangle` with private attributes `length` and `width`. The class should have a method called `get_area()` that returns the area of the rectangle, and a method `get_perimeter()` tha... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Solve the following system of linear equations, where x, y, and z are unknowns:\n\n3x + 2y - z = 7\n2x - y + 4z = 4\nx + 3y + 2z = 10\n\nAfter solving the system, find the value of x, y, and z."
},
... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, let's see. I need to sort a linked list that's given in alternating ascending and descending order. Hmm. So the problem says that the... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a function to find the largest product of three numbers from a given list of integers.\n\nSolve the problem starting with the provided function header.\n\nFunction header:\n```\ndef largest_produ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, I need to solve this problem where given a string S representing a large integer, I have to find the largest odd integer substring an... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, I need to solve this problem where I have an array of four integers [a, b, c, d], which represent two points (a,b) and (c,d). The tas... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Christmas is coming, and Santa has a long list to go through, to find who deserves presents for the big day. Go through a list of children, and return a list containing every child who appeared on Sant... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "There are three horizontal wheels of letters stacked one on top of the other, all with the same number of columns. All wheels have one letter, either ‘A’, ‘B’ or ‘C’, in each of its columns on the edge... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Calculate the average and total sales for each region from a given DataFrame of sales data, and return the result as a DataFrame with multi-level columns.\nNote that: The input DataFrame has columns 'R... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "In some country there are exactly n cities and m bidirectional roads connecting the cities. Cities are numbered with integers from 1 to n. If cities a and b are connected by a road, then in an hour you... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Given a nested list, write a function to flatten it. `my_list = [1, 2, [3, 4, [5, 6], 7], 8]`"
},
{
"role": "assistant",
"content": "<think>\nOkay, I need to write a Python function to flat... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, I need to solve this programming problem. Let's read the problem carefully.\n\nSo, the problem is about the xorbonacci sequence. The ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, let's see. The problem is about Chef needing to determine if he can get enough time to solve a problem by traveling back in time. So ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Little beaver is a beginner programmer, so informatics is his favorite subject. Soon his informatics teacher is going to have a birthday and the beaver has decided to prepare a present for her. He plan... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Roy has a matrix of size NxN. Rows and Columns are numbered from 0 to N-1.\nj^th column of i^th row contains i xor j. \n\nIn other words, Matrix[i][j] = i ^ j where 0 ≤ i,j < N. ( ^ is a bitwise oper... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Implement a class/function, which should parse time expressed as `HH:MM:SS`, or `null/nil/None` otherwise.\n\nAny extra characters, or minutes/seconds higher than 59 make the input invalid, and so shou... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a function named `isMirrorString` that takes a string as input and returns `True` if the string is a mirror string, and `False` otherwise. A mirror string is a string that reads the same backward... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Simplify the exponential expression: $2^3 \\times 2^5 \\div 2^2$ and write the answer in exponential form."
},
{
"role": "assistant",
"content": "Using the properties of exponents, we can s... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a python function that takes a list of two-element lists as an argument. Each inner list represents the cost of sending a person to two different cities. The function should return the minimum co... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "A permutation is a list of K numbers, each between 1 and K (both inclusive), that has no duplicate elements. \n\nPermutation X is lexicographically smaller than Permutation Y if for some i ≤ K:\n\nAl... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "There is a 120 minute videotape with standard recording. When I set the VCR counter to 00:00:00 with the tape completely rewound and recorded in standard recording mode, I got a certain counter value. ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Vasu has N Numbers ( Value either 0 or 1 ) . He is performing Inversions on it. In each Inversion he can select one number. If number is 0 then he converts it in 1 and if number is 1 then he converts ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "\"Write a set of song lyrics that conveys common experiences and emotions in everyday life, such as love, loss, longing, or ambition, and use relatable imagery and language suitable for a casual, conte... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Passage: There were 4,280 households of which 32.9% had children under the age of 18 living with them, 39.2% were married couples living together, 16.4% had a female householder with no husband present... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin?\nAnswer Choices: (A) 23 (B) 23.5 (C) 24 (D) 24.5 (E) 25"
},
{
"role": "assistant"... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "1. What equipment do I need?"
},
{
"role": "assistant",
"content": "I do not have enough context to determine what equipment you are referring to. Can you please specify?"
},
{
"rol... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, let's see. I need to write a Python function that takes an array of numbers and returns the difference between the largest and smalle... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Jessica's family is 300 km away from New York. If they are traveling at the rate of 50 km/h and stop to rest for 30 minutes every 2 hours, how long will it take them to reach New York?"
},
{
"r... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Panda Ears are perfect for every kid (or adult!) and for every single day of the week! Wear your Ears every day so you're ready when imagination strikes, when creativity sparks or when adventure calls!... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "You are given a two-dimensional table (grid) A of N rows and M columns.\nEvery cell contains a lowercase letter, one of 'a' - 'z'.\n\nLet's call two cells of A adjacent, if they share a common side.\n... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a function that checks if a given string is a palindrome.\n```\nA man a plan a canal Panama\n```"
},
{
"role": "assistant",
"content": "<think>\nOkay, I need to write a Python functio... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a python function to find the minimum number of moves required to convert a given number to 1. You can perform one of two operations:\n1. If the number is even, divide it by 2.\n2. If the number ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, let's see. I need to create a GCD matrix from two lists of positive integers and then compute the average of all the values in that m... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Mike and Ann are sitting in the classroom. The lesson is boring, so they decided to play an interesting game. Fortunately, all they need to play this game is a string s and a number k (0 ≤ k < |s|).\n\... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "the length of a rectangular plot is 10 mtr more than its width . the cost of fencing the plot along its perimeter at the rate of rs . 6.5 mtr is rs . 1690 . the perimeter of the plot is ? Please write ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Snuke has an integer sequence A of length N.\nHe will freely choose an integer b.\nHere, he will get sad if A_i and b+i are far from each other.\nMore specifically, the sadness of Snuke is calculated a... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Fox Ciel is going to publish a paper on FOCS (Foxes Operated Computer Systems, pronounce: \"Fox\"). She heard a rumor: the authors list on the paper is always sorted in the lexicographical order. \n\nA... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Everyone knows that DNA strands consist of nucleotides. There are four types of nucleotides: \"A\", \"T\", \"G\", \"C\". A DNA strand is a sequence of nucleotides. Scientists decided to track evolution... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Final kata of the series (highly recommended to compute [layers](https://www.codewars.com/kata/progressive-spiral-number-position/) and [branch](https://www.codewars.com/kata/progressive-spiral-number-... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "What is the next number in the sequence below?\n1 4 9 16 25 36 49 64 81 __ ?\nAnswer Choices: (A) 45 (B) 81 (C) 64 (D) 65 (E) 100"
},
{
"role": "assistant",
"content": "Let's reason about t... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a function to convert a list of strings representing numbers into a single integer. The strings can contain numeric characters or spelled out numbers from 'zero' to 'nine'. The spelled out number... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Florida is starting a promotion where every car that arrives gets one orange per passenger. A family of 4 arrives and gets their oranges. They had planned to stop for a snack later where they would spe... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "In a magical realm called 'Equationia', there are two rival factions: 'Variables' led by 'x' and 'Constants' led by '7'. The ruler of Equationia, the ancient 'Equal Sign', is retiring and has announced... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "You are given a sequence of n integers a_1, a_2, …, a_n.\n\nYou have to construct two sequences of integers b and c with length n that satisfy:\n\n * for every i (1≤ i≤ n) b_i+c_i=a_i \n * b is non-d... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a program to implement binary search. The function should take a sorted list of numbers and a target number as input and return the index of the target number. If the target number is not in the ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Olya loves energy drinks. She loves them so much that her room is full of empty cans from energy drinks.\n\nFormally, her room can be represented as a field of n × m cells, each cell of which is empty ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Katie, Kuro and Shiro are best friends. They have known each other since kindergarten. That's why they often share everything with each other and work together on some very hard problems.\n\nToday is S... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "The big consignment of t-shirts goes on sale in the shop before the beginning of the spring. In all n types of t-shirts go on sale. The t-shirt of the i-th type has two integer parameters — ci and qi, ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Given the text: I’ve had my lunch and my dad made me come along with him to walk the dog belonging to my dad’s friend. While on the walk, he said he wants me to be up by 7am and dressed by 8am. That ea... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "You are given an integer array nums. You have an integer array arr of the same length with all values set to 0 initially. You also have the following modify function: You want to use the modify functio... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a Python program that can identify all palindromes from a list. Palindromes are words that are spelled the same forwards and backwards. For example, the word \"radar\" is a palindrome. The input ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a python function to find the missing and repeated number in a given array of length n containing numbers from 1 to n.\n\nSolve the problem starting with the provided function header.\n\nFunction... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "You came to a local shop and want to buy some chocolate bars. There are n bars in the shop, i-th of them costs a_i coins (and you want to buy all of them).\n\nYou have m different coupons that allow yo... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "We have a rectangular parallelepiped of size A×B×C, built with blocks of size 1×1×1. Snuke will paint each of the A×B×C blocks either red or blue, so that:\n\n* There is at least one red block and at l... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a short story with a protagonist who faces rejection in their personal or professional life and explores how they overcome it. The story should focus on the character's emotional journey and may ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "problem\n\nPlay by arranging white and black stones on the table. First, place the stones on the left edge of the table. Then place the stones in the second place from the left. Repeat this n times to ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "A hat company ships its hats, individually wrapped, in 8-inch by 10-inch by 12-inch boxes. Each hat is valued at $7.50. If the company’s latest order required a truck with at least 432,000 cubic inches... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Consider an array with N elements and value of all the elements is zero. We can perform following operations on the array.\n 1. Incremental operations: Choose 1 element from the array and incre... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "You have a rectangular board consisting of $n$ rows, numbered from $1$ to $n$, and $m$ columns, numbered from $1$ to $m$. The top left is $(1,1)$ and the bottom right is $(n,m)$. Initially - at time $0... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a python function to find the number of groups of similar strings. Two strings are considered similar if you can swap any two characters in any of the strings to make them equal.\n\nSolve the pro... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "You are given three positive (i.e. strictly greater than zero) integers x, y and z.\n\nYour task is to find positive integers a, b and c such that x = max(a, b), y = max(a, c) and z = max(b, c), or det... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "What are the major differences between Theravada, Mahayana, and Vajrayana Buddhism?"
},
{
"role": "assistant",
"content": "Theravada, Mahayana, and Vajrayana are three major branches of Bud... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Explain this Python code and then modify it to handle empty lists and return a string message, \"The list is empty,\" without raising an exception.\n\n```\nsum_numbers = sum(numbers)\nlen_numbers = len... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Dima loves Inna very much. He decided to write a song for her. Dima has a magic guitar with n strings and m frets. Dima makes the guitar produce sounds like that: to play a note, he needs to hold one o... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Let's introduce some definitions that will be needed later.\n\nLet $prime(x)$ be the set of prime divisors of $x$. For example, $prime(140) = \\{ 2, 5, 7 \\}$, $prime(169) = \\{ 13 \\}$.\n\nLet $g(x, p... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "A process RAM is a sequence of bytes that are indexed from 1 to n. Polycarpus's program contains such instructions as \"memset\", that is, the operations of filling memory cells on a segment with some ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Kotori is a celestial mage who loves studying constellations. She recently discovered a new set of stars forming a unique triangular pattern. To document her findings, she needs to verify if certain tr... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a function that takes a list of positive integers and returns the number of \"lucky triples\" in the list. A \"lucky triple\" is defined as a tuple (a, b, c) where a < b < c and b is a multiple o... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "The famous joke programming language HQ9+ has only 4 commands. In this problem we will explore its subset — a language called HQ...\nInput\n\nThe only line of the input is a string between 1 and 106 ch... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "You are developing software to stream music to users over the Interwebs. In order to reduce network traffic for your servers, you plan to do this in a peer-to-peer way: a user who has listened to a giv... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Given the head of a linked list, return the list after sorting it in ascending order.\n\nWrite Python code to solve the problem. Please place the solution code in the following format:\n```python\n# Yo... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a function `count_words_and_characters()` that takes a string as input and returns a dictionary where each key is a tuple containing a word and its character frequency in that word. The correspon... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Last year Bob earned by selling memory sticks. During each of n days of his work one of the two following events took place: \n\n * A customer came to Bob and asked to sell him a 2x MB memory stick. I... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Arjit, Protector of The Realm, has an important task at hand. M new subjects are soon going to become a part of The Realm. The Realm, though, already has N subjects who are well skilled in the ways of ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Write a python function that takes two binary strings as input and returns their sum as a binary string. The input strings are non-empty and only contain the digits 1 and 0.\n\nSolve the problem starti... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "In the Python programming language, devise a method to produce an unpredictable sequence of 8 characters, which should be a blend of both alphabets and numerals.\n\nWrite Python code to solve the probl... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "The penultimate task involved the calculation of the typical Fibonacci sequence up to the nth term.\nInput – single integer n\n\nOutput – Fibonacci sequence up to the nth term, all terms on a new line\... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, let's see. The problem is to find the number of gemstones, which are minerals that appear in every rock. Each rock is represented by ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, let's see. The problem is to find the maximum number of items Chef can buy with K money, using at most one coupon. The coupon gives a... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Four players participate in the playoff tournament. The tournament is held according to the following scheme: the first player will play with the second, and the third player with the fourth, then the ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "A decimal number can be converted to its **Hexspeak representation** by first converting it to an uppercase hexadecimal string, then replacing all occurrences of the digit `'0'` with the letter `'O'`, ... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "There is a country with $n$ citizens. The $i$-th of them initially has $a_{i}$ money. The government strictly controls the wealth of its citizens. Whenever a citizen makes a purchase or earns some mone... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "at a garage sale , all of the items were sold at different prices . if the price of a radio sold at the garage sale was both the 15 th highest price and the 22 nd lowest price among the prices of the i... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Complete this JavaScript code to display the current date and time using the format \"dd/mm/yyyy HH:MM\". The code should be written using the built-in Date object."
},
{
"role": "assistant",
... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "-"
},
{
"role": "assistant",
"content": "<think>\nOkay, I need to solve this problem where Peter sees a mirrored clock, and I have to find the actual time based on the mirrored time he sees... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Berland, 2016. The exchange rate of currency you all know against the burle has increased so much that to simplify the calculations, its fractional part was neglected and the exchange rate is now assum... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "So you decided to hold a contest on Codeforces. You prepared the problems: statements, solutions, checkers, validators, tests... Suddenly, your coordinator asks you to change all your tests to multiple... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Recently the construction of Berland collider has been completed. Collider can be represented as a long narrow tunnel that contains n particles. We associate with collider 1-dimensional coordinate syst... |
[
{
"role": "system",
"content": "You are a helpful assistant."
},
{
"role": "user",
"content": "Given an integer array `nums`, rotate the array to the right by `k` steps, where `k` is non-negative.\n\n**Example 1:**\n\n**Input:** nums = \\[1,2,3,4,5,6,7\\], k = 3\n**Output:** \\[5,6,7,1,2,3,4\\]\... |