摘要：
一、单选题1、在常用的网络协议中，___是面向连接的、有重传功能的协议。A、IP B、TCP C、UDP D、DXP2、500张多米诺骨牌整齐地排成一列，依顺序编号为1、2、3……499、500。第一次拿走所有奇数位置上的骨牌，第二次再从剩余骨牌中拿走所有奇数位置上的骨牌，依此类推。请问最后剩下的一... 阅读全文
摘要：
题目：Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors.OJ's undirected graph serialization:Nodes are labele... 阅读全文
摘要：
题目：There are N gas stations along a circular route, where the amount of gas at station i is gas[i].You have a car with an unlimited gas tank and it co... 阅读全文
摘要：
题目：There are N children standing in a line. Each child is assigned a rating value.You are giving candies to these children subjected to the following ... 阅读全文
摘要：
题目：Given an array of integers, every element appears three times except for one. Find that single one.Note: Your algorithm should have a linear runtim... 阅读全文
摘要：
题目：Given an array of integers, every element appears twice except for one. Find that single one.Note: Your algorithm should have a linear runtime comp... 阅读全文
摘要：
题目：A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.Return a deep co... 阅读全文
摘要：
题目：Given a string s and a dictionary of words dict, add spaces in s to construct a sentence where each word is a valid dictionary word.Return all such... 阅读全文
摘要：
题目：Given a string s and a dictionary of words dict, determine if s can be segmented into a space-separated sequence of one or more dictionary words.Fo... 阅读全文
摘要：
题目：Given a linked list, determine if it has a cycle in it.Follow up: Can you solve it without using extra space?解题思路：判断链表有无环，可用快慢指针进行，快指针每次走两步，慢指针每次走一... 阅读全文