遍历map,如果有value>1的,则存在,返回true,否则返回false; Runtime:1 ms, faster than96.91%of Java online submissions for Find Subarrays With Equal Sum. Memory Usage:40.1 MB, less than86.76%of Java online submissions for Find Subarrays With Equal Sum....
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...
leetcode 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,−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...
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...
升级成为会员 «Data Structure Array: Given an array of of size n and a number k, find all elements that appear more than n/k times »Data Structure Array: Find if there is a subarray with 0 sum posted @2014-04-10 05:41ying_vincent阅读(166) 评论(0)编辑 ...
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. ...