WebJul 23, 2024 · const int MAXN = 100; char s[MAXN]; cin >> s + 1; for (int i = 1; i <= strlen(s); i++) { cout << s[i]; } Second one could get 0 form strlen(s) if s[0] is equal 0. Additionally it steps over ending NUL character. In first one, cin >> s + 1; reads data from standard input and puts it starting with s[1]. WebMar 20, 2024 · 1 人赞同了该回答 如果你用了vs的高版本(vs2024等等)的话报错是正常的，把scanf换成scanf_s就好了，这样做的好处就是防止内存泄露。 个人建议，如果你是新手的话建议从低版本vs入门，如VC6.0或者vs2010入门。

【C/C++】读取字符串从下标为1 (a [1])开始/scanf (“%s“,a+1)是什么

WebApr 22, 2024 · 1.cin简介 cin是C++编程语言中的标准输入流对象，即istream类的对象。cin主要用于从标准输入读取数据，这里的标准输入，指的是终端的键盘。此外，cout是流的 … WebDec 16, 2024 · 在DEV—C++ 运行 ，发现cin >> s 和 strlen(s) 运行不出来，是错误形式。 同样代码我在其他平台上运行的结果： s[0] 是乱码。 总之用cin >> s + 1 时，若想输出长 … property for sale chickerell

cin1级是什么意思-有来医生

WebJun 4, 2024 · Its purpose is to prevent std::cin from overflowing the string it's reading into, and cppreference.com does list new prototypes for std::istream 's operator>> that now have CharT (&s) [N] , not CharT* s, as the argument taken. Confirmation: this MCVE works with g++ 10 (which doesn't support this), and with Visual Studio using Default as the ... WebFeb 5, 2024 · Let's denote the f (x) function for a string x as the number of distinct characters that the string contains. For example f (abc)=3, f (bbbbb)=1, and f (babacaba)=3. Given a string s, split it into two non-empty strings a and b such that f (a)+f (b) is the maxi. Code for ces Round # 849 ( Div. 4) &D Distinct Split. weixin_73874239的博客. WebApr 19, 2024 · 问题描述： 利用cin获取输入时，输入类型错误可能会导致出现异常情况 解决方案： 1.cin后,判断输入是否出错 a.直接使用cin.fail(),有错就返回True b.我在网上看见有 … property for sale chichester