Given an array of n integers, the problem is to find the contiguous subarray of length k that has the maximum sum.
This problem asks the programmer to write a function that takes in an array of integers and returns the sum of the even numbers in the array. An example input and output are given.
Given an array of n integers, find the contiguous subarray of given length k that has the maximum average value. Output the maximum average value.
This problem involves finding the smallest substring in a given string that contains all the characters in a given pattern. An example input and output are provided in the problem statement.
This function takes a string as input and returns true if the string is a permutation of a palindrome. A palindrome is a word or phrase that is the same forwards and backwards. A permutation is a rearrangement of letters.
Given a string, this problem seeks to find the length of the longest substring within that string that does not contain any repeating characters.