The problem "Two Sum" requires finding two numbers in aninteger arraysuch that their sum equals a specifiedtargetnumber. You need to returnthe indices ofthese two numbers, whereindices start from 0. The indices ofthe two numbers cannot be the same, and there isexactly one solutionfor each i...
1 public int[] twoSum(int[] numbers, int target){ 2 Map<Integer, Integer> map = new HashMap<>(); 3 for(int i = 0; i < numbers.length; i++){ 4 int x = numbers[i]; 5 if(map.containsKey(target - x)){ 6 return new int[] {map.get(target - x) + 1,i + 1}; 7 }...
classSolution{publicint[] twoSum(int[] nums,inttarget) { Map<Integer, Integer> map =newHashMap<>();for(inti=0; i < nums.length; i++) {//计算结果intresult=target - nums[i];//map中是否包含这个结果,若包含则返回该结果,及对应的目前数组的indexif(map.containsKey(result)) {//map是后...
点击“Edit Code”,修改代码 classSolution{public:vector<int>twoSum(vector<int>&nums,inttarget){vector<int>vecResult;autoiSize=nums.size();for(inti=0;i<iSize-1;++i){for(intj=i+1;j<iSize;++j){if(nums[i]+nums[j]==target){vecResult.push_back(i);vecResult.push_back(j);returnvecR...
leetcode算法—两数之和 Two Sum 关注微信公众号:CodingTechWork,一起学习进步。 题目 Two Sum: Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solution, and you may not use the...
LeetCode之“散列表”:Two Sum && 3Sum && 3Sum Closest && 4Sum,1.TwoSum题目链接题目要求:Givenanarrayofintegers,findtwonumberssuchthattheyadduptoaspecifictargetnumber.ThefunctiontwoSumshoul...
Leetcode c++语言 方法/步骤 1 问题描述：给定一个整数数组，返回两个数字的索引，使它们相加的值等于一个特定的目标值。假设对于每个输入只有一种解决方案，并且您不可以两次同时使用相同的元素。2 问题的示例：给定nums = [2,7,11,15]， target = 9，因为nums[0] + nums[1] = 2 + 7 = 9，返回[0,...
leetcode No1:https://leetcode.com/problems/two-sum/ Given an array of integers,returnindices of the two numbers such that they add uptoa specific target.You may assume that each input would have exactly one solution,andyou may not use the same element twice.Example:Given nums=[2,7,11,...
Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers suchthat they add up to the target, where index1 must be less than index2.Please note that your returned answers (both index1 and...
复杂度分析 时间复杂度:O(n)。 空间复杂度:O(n)。 原题地址 英文版:https://leetcode.com/problems/two-sum/ 中文版:https://leetcode-cn.com/problems/two-sum/