All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: “ACGAATTCCG”. When studying DNA, it is sometimes useful to identify repeated sequences within the DNA.Write a
sizeof(string) 到底是多少呢？关于sizeof(string)，在书上分配的，与sizeof()
当表达式中存在有符号类型和无符号类型时所有的操作数都自动转换为无符号类型。因此，从这个意义上讲，无符号数的运算优先级要高于有符号
消除重复相邻元素unique函数unique()是C
插入迭代器插入迭代器(Insert Iterator)，又叫插入器(Inserter)，是继上次的反向迭代器之后C++中的又一个迭代器适配器。插入迭代器的主要功能为把一个一承...
与其他的容器不一样，链表类型的list和forw序的。lst.merge(lst2,
这里主要总结一下，读取string的几种方式cin等输入流这里主要涉及到cin,stringstream等等输入流，string s;cin>>s;stringstream ss;ss>s;这就是从输入流中把数据读取到字符串s中，其中遇到空额即停止，也就是按照空格分割的getline读取一整行有很多时候我们需要读取一整行的数据，这一行中有空格，那么直接
关联容器标准库提供8个关联容器，这8个容器间nordered开头。类型map和multimap定义在头文件map中；se
Given a string, find the first non-repeating chrn 0.s = “loveleetcode”, return 2. Note: You may
标准库定义了一组表示算数运算符、关系运算符和逻辑运算符的类，每个类分别定义了一个执行命名操作的调用运算符。目前想到的使用场景是
Say you have an array for which the ith element is the price of a given stock on day i.Design an algorithm to find the maximum profit. You may complete at most k transactions.Note: You may not engage
You have n super washing machines on a line. Initially, each washing machine has some dresses or is empty.For each move, you coud pass one dress of ea...
Given two strings s and t which consiste letter at a random position.Find the letter that was adde
OSPF 开放式最短路径优先（Open Shortest Path First）是IETF组织开发的一个基于链路状态的内部网关协议（Interior Gateway Protocol），目前针对IPv4协议使用的是OSPFv2，针对IPv6协议使用OSPFv3
OSPF采用最短路径优先(SPF)算法，链路状态路由协议是层次式的，网络中的路由器并不向邻居传递“路由项”，而是通告给邻居一些链路状态
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数字——>字符串这个很简单，可以直接使用stringstream来做转换，但是有点麻烦，直接使用to_string()函数更加方便个人推荐
Given a binary tree, imagine yourself
In LeetCode Store, there are some kinds of items to sell. Each item has a price.However, there are some special offers, and a special offer consists.
Given a 2D binary matrix filled with 0’s and 1’s, find the largest matrix:1 0 1 0 0 1 0 1 1 1 1 1 1 1 1 1 0 0 1 0
Design a data structure that supports the following two operations:void addWord(word)
Given an index k, return the kth row of t如下：import java.util.ArrayList;import java.util.List;public class So
Given a 2D board and a list of words from the dictionary, find all words in the board.E
Given numRows, ge
Say you have an array for which the ith elemofit. You may complete at most two transactions.Note: You may not
Given a linked list, determine if it ha
Java 的基本数据结构如下图： 注意Java中没有无符号数据，也就是说没有无符号的整形数据
Given a string s, pa
Given an integer, write a function to determine if it is a power of two.就是判断一个数是不
There are some trees, where each tree is represented by (x,y) coordinate in a two-dimensional garden. Your job is to fence the entiof rope as it is expensive. The ga...
Find the kth largest element in an unsorted array. Note that it is the kth largest element in t