Leetcode Solutions(一) two-sum Two Sum 题目 给定一个整数数组和一个目标值,找出数组中和为目标值的两个数。 你可以假设每个输入只对应一种答案,且同样的元素不能被重复利用。 示例: 给定 nums = [2, 7, 11,…
Python Solution: 1deftwoSum(self, nums: List[int], target: int) ->List[int]:2dict ={};3foriinrange(len(nums)):4if(target - nums[i])indict :5return[dict[target -nums[i]], i]6dict[nums[i]] = i Github link :https://github.com/DaviRain-Su/leetcode_solution/tree/master/two...
github地址:https://github.com/CyanChan/leetcode
File metadata and controls Code Blame 12 lines (10 loc) · 204 Bytes Raw func twoSum(nums []int, target int) []int { m := make(map[int]int) for idx, num := range nums { if val, found := m[target-num]; found { return []int{val, idx} } m[num] = idx } return nil...
nums = [2,7,11,15] & target = 9 -> [0,1], 2 + 7 = 9 At each num, calculate complement, if exists in hash map then return Time: O(n) Space: O(n) */ class Solution { public: vector<int> twoSum(vector<int>& nums, int target) { int n = nums.size(); unordered_map...
Github 同步地址: https://github.com/grandyang/leetcode/issues/1 类似题目: 4Sum 3Sum Smaller 3Sum Closest 3Sum Two Sum III - Data structure design Two Sum II - Input array is sorted 参考资料: https://leetcode.com/problems/two-sum/
当然这一题明显看到了 leetcode 的怜悯,怕我们上来就放弃。 我们如何改进一下呢? 排序是这个场景另一种很有用的方式。 v2-排序+二分 思路 我们希望排序,然后通过二分法来提升性能。 代码 publicint[] twoSum(int[] nums,inttarget) {int[] res =newint[2]; ...
因此我们可以用两个for循环遍历整个数组,找到这个数组中两个值的和等于这个给定值的数组下标并输出。 回到顶部 三、Go代码 //1_常规解法func twoSum(nums []int, targetint) []int{varresult = [2]int{0,0}iflen(nums) <2{returnnil }fori :=0; i < len(nums) -1; i++{forj := i +1; j...
使用Catch2 进行测试,项目配置详见github[1] 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #include"0001. Two Sum.h"#include<catch2/catch_test_macros.hpp>#include<iostream>#include"../utils/utils.h"using namespace std;TEST_CASE("Two Sum","[twoSum]"){Solution solution;SECTION("1"){...
leetcode.com 题目描述 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 *same* element twice. Example: Given nums = [2, 7, 11, 15]...