题解 | 截取字符串
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
#include <iostream> using namespace std; int main() { string s; int n; cin >> s >> n; for(int i = 0; i < n; i ++ ){ cout << s[i]; } return 0; } // 64 位输出请用 printf("%lld")