摘要：
Word SearchGiven a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, wh... 阅读全文
摘要：
Binary Tree Right Side ViewGiven a binary tree, imagine yourself standing on therightside of it, return the values of the nodes you can see ordered fr... 阅读全文
摘要：
Number of IslandsGiven a 2d grid map of'1's (land) and'0's (water), count the number of islands. An island is surrounded by water and is formed by con... 阅读全文
摘要：
Bitwise AND of Numbers RangeGiven a range [m, n] where 0 >= 1) lena++; while(b >>= 1) lenb++; if(lena == lenb) { for(int i = m... 阅读全文
摘要：
Happy NumberWrite an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting with any posi... 阅读全文
摘要：
Remove Linked List ElementsRemove all elements from a linked list of integers that have valueval.ExampleGiven:1 --> 2 --> 6 --> 3 --> 4 --> 5 --> 6,va... 阅读全文
摘要：
Reverse Linked ListReverse a singly linked list.click to show more hints.Have you met this question in a real interview?class Solution{public: ListNo... 阅读全文
摘要：
Count PrimesDescription:Count the number of prime numbers less than a non-negative number,nclick to show more hints.References:How Many Primes Are The... 阅读全文
摘要：
Isomorphic StringsGiven two stringssandt, determine if they are isomorphic.Two strings are isomorphic if the characters inscan be replaced to gett.All... 阅读全文
摘要：
1，建立连接 在TCP/IP协议中，TCP协议提供可靠的连接服务，采用三次握手建立一个连接，如图1所示。（1）第一次握手：建立连接时，客户端A发送SYN包（SYN=j）到服务器B，并进入SYN_SEND状态，等待服务器B确认。（2）第二次握手：服务器B收到SYN包，必须确认客户A的SYN（ACK=j... 阅读全文