摘要：
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie... 阅读全文
摘要：
[LeetCode]1. 2Sum题目：https://leetcode.com/problems/two-sum/，解答：http://www.cnblogs.com/aprilcheny/p/4823576.html；[LeetCode]2. 3Sum题目：https://leetcode.co... 阅读全文
摘要：
Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the sum of ... 阅读全文