错误消息"TypeError: ‘int’ object is not iterable "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、集合、元组、字符串可迭代；整数、浮点数、布尔、Non...
题目地址:https://oj.leetcode.com/problems/two-sum/ Two Sum 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 target, where index1 must be less than...
classSolution{publicint[] twoSum(int[] nums,inttarget) { HashMap<Integer, Integer> hashTable =newHashMap<>();for(inti=0; i < nums.length; ++i) {intsearch_key=target - nums[i];// 先查询是否存在与nums[i]对应的值,存在则返回结果if(hashTable.containsKey(search_key)) {returnnewint[]...
A simple implementation uses two iterations. In the first iteration, we add each element's value as a key and its index as a value to the hash table. Then, in the second iteration, we check if each element's complement (target - nums[i]target−nums[i]) exists in the hash table. ...
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,...
点击“Edit Code”,修改代码 class Solution { public: vector<int> twoSum(vector<int>& nums, int target) { vector<int> vecResult; auto iSize = nums.size(); for( int i = 0; i < iSize - 1; ++i ) { for( int j = i + 1; j < iSize; ++j ) { if( nums[i] + nums[j]...
LeetCode(力扣) 题库 第1题 Two Sum(两数之和) java新手 清晰解题过程,恢复内容开始1.用scanner读进来用nextline得到所有输入存在字符串s1里输入:nums=[2,17,11,15],target=92.用for循环+字符串的charAt函数,再建立一个整数数组,将读进来的字符串s1判断一下,数字和逗号
这道题如果使用Brute Force,在LeetCode上会超时,具体程序如下: 1vector<int> twoSum(vector<int>& nums,inttarget) {2vector<int>ret;3intsz =nums.size();4for(inti =0; i < sz; i++)5for(intj = i +1; j < sz; j++)6{7if(nums[i] + nums[j] ==target)8{9ret.push_back(i);10...
正所谓"平生不识TwoSum,刷尽LeetCode也枉然"。 下面我将分析几种常见的解法, 循序渐进的写出越来越优的解法, 并且给出Java实现代码, 同时分析算法的时间复杂度。 4.穷举法 遍历所有的两个数字的组合,然后计算两数和, 两个for循环搞定,简单暴力,比较费时的解法, ...
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,...