Given an arrayAof integers, wemustmodify the array in the following way: we choose aniand replaceA i with A i , and we repeat this processKtimes in total. We may choose the same indeximultiple times. ...
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Given an integer array arr and an integer k, modify the array by repeating it k times. For example, if arr = [1, 2] and k = 3 then the modified ...
Given an array nums and a target value k, find the maximum length of a subarray that sums to k. If there isn't one, return 0 instead. Note ...
Given an array of integers and an integer k, you need to find the total number of continuous subarrays whose sum equals to k. Example 1: Note ...
Given an array of integers and an integer k, you need to find the total number of continuous subarrays whose sum equals to k. Example ...
Given two integers n and k, find how many different arrays consist of numbers from 1 to n such that there are exactly k inverse pairs. We define ...
在未排序的数组中找到第 k 个最大的元素。请注意，你需要找的是数组排序后的第 k 个最大的元素，而不是第 k 个不同的元素。 示例 1: 示例 2: TopK的问题，思路就是用堆来解决。 先以前K个元素构建一个大小为K的小顶堆，然后从K个元素之后，遍历从索引在K后面的元素 ...
LeetCode wants to give one of its best employees the option to travel among N cities to collect algorithm problems. But all work and no play makes ...
