用一个哈希表(C++中用unordered_map, C#中用dictionary, Python中用dict,Java中可以直接用HashMap),存储每个数对应的下标,复杂度O(n); 方法4: 快排 + 双指针 方法2 AC代码: class Solution { public: vector<int> twoSum(vector<int>& nums, int target) { vector<int> res(2); // 双指针, ...
public static int[] TwoSum(int[] nums, int target) { } } }int[] result = new int[2]; //[0,3],[3,0] Dictionary<int, int> table = new Dictionary<int,int>(); // use empty constructor, result: 544 ms for (int i = 0; i < nums.Length; i++) ...
Runtime: 848 ms, faster than32.81%ofPython3online submissions forTwo Sum. 仍旧是连一半都没超过啊,娘匹西。 官方方法 Two-Pass Hash Table class Solution: def twoSum(self, nums: List[int], target: int) -> List[int]: hashTable = {} length = len(nums) for i in range(length): hashTabl...
leetcode--1:(python)Two Sum 2019.5.25: #1 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, and you may not use thesameelement twice. Example: 我的解法: 这种思维上比...
Python enumerate() 函数,用for来实现计数功能 enumerate()函数enumerate()函数用于将一个可遍历的数据对象(如列表、元组或字符串)组合为一个索引序列,同时列出数据和数据下标,一般用在 for 循环当中。enumerate(sequence, [start=0]) 举个例子: 例子来源 ...
leetcode python3 简单题1.Two Sum 1.编辑器 我使用的是win10+vscode+leetcode+python3 环境配置参见我的博客: 链接 2.第一题 (1)题目 英文: Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that ea......
LeetCode 001. Two Sum 2019独角兽企业重金招聘Python工程师标准>>> 题目: 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 su......
return [i,j] 但是报错了(还是本人基本语法掌握不好) 经查阅后 错误消息"TypeError: ‘int’ object is notiterable"通常在Python中出现,当您尝试像遍历(循环)可迭代对象一样遍历整数(int)值时,比如列表、元组或字符串等时会出现此错误。在Python中,您只能遍历支持迭代的对象,如序列和集合。总的来看:列表、字典...
对于一个给定的数组,找出2个数,它们满足2个数的和等于一个特定的数,返回这两个数的索引。(从1开始) 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 such that they add up to the tar...
Given an array of integers that is alreadysorted in ascending order, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2. Please note...