代码语言:javascript 复制 classSolution{public:vector<int>twoSum(vector<int>&nums,int target){vector<int>result;// 方法一:暴力搜索for(int i=0;i<nums.size();i++){for(int j=i+1;j<nums.size();j++){// 注意这里是从i+1开始,避免重复利用同一个元素if(target-nums[j]==nums[i]){result...
};//O(n),渐进性没有改善,不过去掉了一些尾巴//Runtime: 52 ms, faster than 100.00% of JavaScript online submissions for Two Sum.vartwoSum4 =function(nums, target) { let obj= {}, j;//用obj作为mapfor(let i = 0; i != nums.length; ++i) {if((j = obj[nums[i]]) !=undefined)...
classSolution{public:vector<int>twoSum(vector<int>&nums,int target){}}; C++ 类中的 twoSum 成员函数有两个参数,分别是 nums 和 target,这两个参数和题目中描述的是一样的。 C 语言给出的函数定义如下: 代码语言:javascript 复制 /** * Note: The returned array must be malloced, assume caller ca...
方法一: functiontwoSum(nums, target) {varlen = nums.lengthvarsum;varresult;for(vari =0; i <len; i++ ){for(varj = i+1; j < len ; j++){ sum = nums[i] + nums[j]if( sum === target) { result = [i,j]returnresult; } } } }; 方法二: functiontwoSum(nums, target) {va...
查了一下,发现JavaScript实现了一个Map对象,所以可以直接使用Map,来提高性能。学习链接如下MDN:Map /** * @param {number[]} nums * @param {number} target * @return {number[]} */ var twoSum = function(nums, target) { var newNums = new Map(); var result =[]; for(var i = 0;...
//javascript:void(0) //K sum 可以递归去做 /* * 2Sum问题的求解:排序外加双指针来实现 * */ public List<List<Integer>> twoSum(int[] nums,int target) { List<List<Integer>> twoResList=new ArrayList<>(); Arrays.sort(nums); int i=0,j=nums.length-1; ...
Runtime:104 ms, faster than 46.95% of JavaScript online submissions for Two Sum. Memory Usage:34.6 MB, less than 72.32% of JavaScript online submissions for Two Sum. 决定采用python方法做一遍,试一下有什么不同,代码如下: python 2: class Solution(object): ...
一丶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 haveexactlyone solution. Example: Given nums = [2, 7, 11, 15], target = 9, ...
看到一篇博文JavaScript 版数据结构与算法(三)链表才稍微理解 题中的2->4->3可以理解为 {element: 2, next:{element: 4, next:{element:3,next:null}}} 那这样就好办了 解题思路: 取出每次遍历的链表值相加 如果进位则统计起来 题中l1,l2长度不确定,所以当l1,l2以及进位不为空时,继续计算 ...
/** * @作者:lao-la-rou-yue-jiao-yue-xiang * @链接:https://leetcode-cn.com/problems/two-sum/solution/xiao-bai-pythonji-chong-jie-fa-by-lao-la-rou-yue-j/ * @param {number[]} nums * @param {number} target * @return {number[]} */def twoSum(nums, target): lens = len(nums...