紫魔戒

摘要： TCP三次握手四次挥手 标志位缩写 全称 中文 SYN synchronous 建立联机 ACK acknowledgement 确认 PSH push 传送 FIN finish 结束 RST reset 重置 URG urgent 紧急 ... 阅读全文

摘要： DescriptionGiven n points in the plane that are all pairwise distinct, a “boomerang” is a tuple of points (i, j, k) such that the distance bet... 阅读全文

摘要： Description Given a string s and a string t, check if s is subsequence of t. You may assume that there is only lower case English letters in b... 阅读全文

摘要： DescriptionSuppose you have a random list of people standing in a queue. Each person is described by a pair of integers (h, k), where h is the... 阅读全文

摘要： DescriptionAssume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. E... 阅读全文

摘要： DescriptionGiven an array of integers sorted in ascending order, find the starting and ending position of a given target value.Your algorithm’... 阅读全文

摘要： #include "limits.h"#include "math.h"int abs(int number){ int const mask = number >> (sizeof(int) * CHAR_BIT - 1); return (number + mask)... 阅读全文

摘要： 338. Counting BitsDescriptionGiven a non-negative integer number num. For every number i in the range 0 ≤ i ≤ num calculate the number of 1’s ... 阅读全文

摘要： vector–C++ STL 学习vector对应的数据结构为数组，而且是动态数组，也就是说我们不必关心该数组事先定义的容量是多少，它的大小会动态增长。与数组类似的是，我们可以在末尾进行元素的添加和删除，也可以进行元素值的随机访问和修改。 vector是STL中最常见的容器，它... 阅读全文

摘要： 53. Maximum Subarraymy program:class Solution {public: int maxSubArray(vector& nums) { int result = nums[0]; int sum = 0; ... 阅读全文