题目描述:Given an array of integers nums, write a method that returns the "pivot" index of this array.We define the pivot index as the index where the sum of the ...
题目描述:Given an array consisting of n integers, find the contiguous subarray of given length k that has the maximum average value. And you need to output the max...
题目描述:The set S originally contains numbers from 1 to n. But unfortunately, due to the data error, one of the numbers in the set got duplicated to another numbe...