摘要：
题目描述：Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoint... 阅读全文
摘要：
题目描述：Reverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321解题方案：该题比较简单，直接贴代码： 1 class Solution { 2 public: 3 int ... 阅读全文
摘要：
题目描述：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 t... 阅读全文
摘要：
题目描述：Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should have a linear runtime compl... 阅读全文