Given a 0-indexed integer arraynums, determine whether there exist two subarrays of length2with equal sum. Note that the two subarrays must begin at different indices. Returntrueif these subarrays exist, andfals
For example, given the array[−2,1,−3,4,−1,2,1,−5,4], the contiguous subarray[4,−1,2,1]has the largest sum =6. 1,注意解题方法,设置两个变量,current,用来纪录当前值,和Max比较,如果为负,就把它设置为0. packageLeetcode;publicclassMaximumSubarray {publicintmaxSubArray(int[] ...
Similarly with the prior prefix, we try to find if there is prefix sum S + target. If this subarray exists, it starts at >= i + 1. Given that arr only has positive integers, we know the prefix sum will be strictly increasing. This means there will only be at most one such subarra...
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Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate number must exist. Assume that there is only one duplicate number, find the duplicate one. Submit your solution:https://leetcode.com/problems/find-the-duplicat...
277. Find the Celebrity Suppose you are at a party withnpeople (labeled from0ton - 1) and among them, there may exist one celebrity. The definition of a celebrity is that all the othern - 1people know him/her but he/she does not know any of them....
Data Structure Array: Find the Increasing subsequence of length three with maximum product http://www.geeksforgeeks.org/increasing-subsequence-of-length-three-with-maximum-product/