注意这两个元素不能是相同的. 解法一:二分查找法,逐一取数组中的值,然后second = target - numbers[i] , 用二分查找法求第二个值. 时间复杂度:O(nlongn) class Solution { public: vector<int> twoSum(vector<int>& numbers, int target) { //二分查找 vector<int> result; int n = numbers.size(); ; i<…

Given an array of integers that is already sorted 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 m…

package y2019.Algorithm.array; /** * @ProjectName: cutter-point * @Package: y2019.Algorithm.array * @ClassName: TwoSum2 * @Author: xiaof * @Description: 167. Two Sum II - Input array is sorted * Given an array of integers that is already sorted in as…

167. Two Sum II - Input array is sorted Given an array of integers that is already sorted 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 t…

Leetcode之二分法专题-167. 两数之和 II - 输入有序数组(Two Sum II - Input array is sorted) 给定一个已按照升序排列 的有序数组,找到两个数使得它们相加之和等于目标数. 函数应该返回这两个下标值 index1 和 index2,其中 index1 必须小于 index2. 说明: 返回的下标值(index1 和 index2)不是从零开始的. 你可以假设每个输入只对应唯一的答案,而且你不可以重复使用相同的元素. 示例: 输入: numbers…

167. Two Sum II - Input array is sorted[easy] Given an array of integers that is already sorted 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…

Question 167. Two Sum II - Input array is sorted Solution 题目大意:和Two Sum一样,这里给出的数组是有序的 思路:target - nums[i],这样就实现了降维了 Java实现: public int[] twoSum(int[] nums, int target) { int[] result = new int[2]; Map<Integer, Integer> map = new HashMap<>(); f…

Given an array of integers that is already sorted 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 m…

Input array is sorted: Use binary search or two pointers Unsorted: Use hash map, key = target - a[i], value = a[i] Search and find containsKey…

Two Sum II – Input array is sorted whowhoha@outlook.com Question: Similar to Question [1. Two Sum], except that the input array is already sorted in ascending order. 同上题:先排序,然后从开头和结尾同时向中间查找,原理也比较简单.O(nlogn) runtime, O(1) space vector<int> twoSumSore…

167. Two Sum II - Input array is sorted Easy Given an array of integers that is already sorted 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 t…

Given an array of integers that is already sorted 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 m…

Description Given an array of integers that is already sorted 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, wh…

Given an array of integers that is already sorted 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 m…

1.two sum 用hash来存储数值和对应的位置索引,通过target-当前值来获得需要的值,然后再hash中寻找 错误代码1: Input:[3,2,4]6Output:[0,0]Expected:[1,2] 同一个数字不能重复使用,但这个代码没排除这个问题 class Solution { public: vector<int> twoSum(vector<int>& nums, int target) { vector<int> result; uno…

1.题目大意 Given an array of integers that is already sorted 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 i…

公众号: 爱写bug(ID:icodebugs) 给定一个已按照升序排列 的有序数组,找到两个数使得它们相加之和等于目标数. 函数应该返回这两个下标值 index1 和 index2,其中 index1 必须小于 index2. 说明: 返回的下标值(index1 和 index2)不是从零开始的. 你可以假设每个输入只对应唯一的答案,而且你不可以重复使用相同的元素. 示例: 输入: numbers = [2, 7, 11, 15], target = 9 输出: [1,2] 解释: 2 与 7…

▶ 问题:给定一个数组 nums 及一个目标值 target,求数组中是否存在 n 项的和恰好等于目标值 ▶ 第 1题,n = 2,要求返回解 ● 代码,160 ms,穷举法,时间复杂度 O(n2),空间复杂度 O(1) class Solution { public: vector<int> twoSum(vector<int> nums, int target) { int i, j; ; i < nums.size()-; i++) { ; j < nums.si…

1. 题目 1.1 英文题目 Given an array of integers numbers that is already sorted in non-decreasing order, find two numbers such that they add up to a specific target number. Return the indices of the two numbers (1-indexed) as an integer array answer of size…

Given an array of integers that is already sorted 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 mu…

这是悦乐书的第179次更新,第181篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第38题(顺位题号是167).给定已按升序排序的整数数组,找到两个数字,使它们相加到特定的目标数.函数twoSum应该返回两个数字的索引,使它们加起来到目标,其中index1必须小于index2. 注意: 返回的答案(index1和index2)不是从零开始的. 可以假设每个输入只有一个解决方案,并且您可能不会两次使用相同的元素. 例如: 输入:数字= [2,7,11,15],目标=…

题意:对于一个有序数组,输出和为target的两个元素的下标.题目保证仅有唯一解. 分析: 法一:二分.枚举第一个元素,二分找另一个元素,时间复杂度O(nlogn),非最优解. class Solution { public: vector<int> twoSum(vector<int>& numbers, int target) { int len = numbers.size(); vector<int> ans; for(int i = 0; i <…

题目: Given an array of integers that is already sorted 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 inde…

Given an array of integers that is already sorted 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 m…

Given an array of integers that is already sorted 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 m…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 Java解法 Python解法 日期 题目地址:https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/#/description 题目描述 Given an array of integers that is already sorted in ascending order,…

Problem: Given an array of integers that is already sorted 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…

Given an array of integers that is already sorted 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 m…

Given an array of integers that is already sorted 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 m…

Given an array of integers that is already sorted 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 m…