James Pan

原题网址:https://leetcode.com/problems/maximum-size-subarray-sum-equals-k/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

原题网址：https://leetcode.com/problems/longest-increasing-subsequence/Given an unsorted array of integers, find the length of longest increasing subsequence.For example,Given [10, 9, 2, 5, 3,

原题网址：https://leetcode.com/problems/longest-substring-without-repeating-characters/Given a string, find the length of the longest substring without repeating characters.Examples:Given "ab

原题网址：https://leetcode.com/problems/maximum-subarray/Find the contiguous subarray within an array (containing at least one number) which has the largest sum.For example, given the array [−2,1

原题网址：https://leetcode.com/problems/wiggle-subsequence/A sequence of numbers is called a wiggle sequence if the differences between successive numbers strictly alternate between positive and nega

原题网址：https://www.hackerrank.com/challenges/maxsubarrayGiven an array  of  elements, find the maximum possible sum of aContiguous subarrayNon-contiguous (not necessarily contiguou