摘要： refer to: https://www.algoexpert.io/questions/Three%20Number%20Sum Three number Sum problem statement 给定一个数组和一个目标值，返回二维数组包含所有的三元组使得这三个数值的和等于目标值，返回的二维数 阅读全文

摘要： Refer to : https://www.algoexpert.io/questions/Two%20Number%20Sum Two number sum 1. problem statement. 给定一个不含重复数字的数组和一个目标值，返回一个长度为2的数组，这个数组包含的两个数的和要等于 阅读全文

摘要： From : https://www.algoexpert.io/questions/First%20Duplicate%20Value First duplicate value 1. problem statement 给定一个长度为n的数组，这个数组包含的整数的范围在[1,n]，我们需要找到第 阅读全文

摘要： From Youtuber: CS Dojo Closest sum_pair 1. Problem Statement given two arrays and a target value, we need to find the pair value that their sum is mos 阅读全文