Juni_DEV

Sparse Arrays | HackerRank Determine the number of times a string has previously appeared. www.hackerrank.com 주어진 문제 더보기 There is a collection of input strings and a collection of query strings. For each query string, determine how many times it occurs in the list of input strings. Return an array of the results. Example stringList = ['ab','ab','abc'] queries = ['ab','abc','bc'] There are 2 inst..

https://www.hackerrank.com/challenges/divisible-sum-pairs/problem 주어진 문제 더보기 Given an array of integers and a positive integer k, determine the number of (i,j) pairs where i

Camel Case 4 | HackerRank www.hackerrank.com 주어진 문제 더보기 Camel Case is a naming style common in many programming languages. In Java, method and variable names typically start with a lowercase letter, with all subsequent words starting with a capital letter (example: startThread). Names of classes follow the same pattern, except that they start with a capital letter (example: BlueCar). Your task i..

Breaking the Records | HackerRank Given an array of Maria's basketball scores all season, determine the number of times she breaks her best and worst records. www.hackerrank.com 주어진 문제 더보기 Maria plays college basketball and wants to go pro. Each season she maintains a record of her play. She tabulates the number of times she breaks her season record for most points and least points in a game. Po..

Mini-Max Sum | HackerRank Find the maximum and minimum values obtained by summing four of five integers. www.hackerrank.com 주어진 문제 더보기 Given five positive integers, find the minimum and maximum values that can be calculated by summing exactly four of the five integers. Then print the respective minimum and maximum values as a single line of two space-separated long integers. Example arr = [1,3,5..

Time Conversion | HackerRank Convert time from an AM/PM format to a 24 hour format. www.hackerrank.com 주어진 문제 더보기 Given a time in 12-hour AM/PM format, convert it to military (24-hour) time. Note: - 12:00:00AM on a 12-hour clock is 00:00:00 on a 24-hour clock. - 12:00:00PM on a 12-hour clock is 12:00:00 on a 24-hour clock. Example s = '12:01:00PM" Return '12:01:00'. s = '12:01:00AM' Return '00:0..

Plus Minus | HackerRank Calculate the fraction of positive, negative and zero values in an array. www.hackerrank.com 주어진 문제 더보기 Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the decimal value of each fraction on a new line with 6 places after the decimal. Note: This challenge introduces precision problems. The test cases are scaled ..