which gives the sum of target. Note: Elements ...
Given four lists A, B, C, D of integer values, compute how many tuples i, j, k, l there are such thatA i B j C k D l is zero. To make problem a bit easier, all A, B, C, D have same length of N where ...
2016-11-17 12:38 4 10819 推荐指数:
which gives the sum of target. Note: Elements ...
454.四个数相加II 题目链接:四个数相加II(中等) 题目描述 给你四个整数数组 nums1、nums2、nums3 和 nums4 ,数组长度都是 n ,请你计算有多少个元组 (i, j, k, l) 能满足: 0 <= i, j, k, l < n ...
Given an array of integers that is already sorted in ascending order, find two numbers such that ...
Given a collection of candidate numbers (candidates) and a target number (target), find all uniqu ...
原题地址:http://oj.leetcode.com/problems/4sum/ 题意:从数组中找到4个数,使它们的和为target。要求去重,可能有多组解,需要都找出来。 解题思路:一开始想要像3Sum那样去解题,时间复杂度为O(N^3),可无论怎么写都是Time Limited ...
and sum = 22, return 这道二叉树路径之和在之前那道题 Path Sum 的 ...
which gives the sum of target. Note:Elements in a qua ...
排序,从一个数开始遍历,若该数大于0,后面的数不可能与其相加和为0,所以跳过;否则该数可能是满足要求的第一个数 ...