题解 | #截取字符串#
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
string s;
cin>>s;
int n;
cin>>n;
cout<<s.substr(0,n)<<endl;
return 0;
}
