题解 | #截取字符串#
截取字符串
https://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
#include <iostream>
#include<string>
using namespace std;
int main()
{
string input;
int k;
cin >> input;
cin >> k;
cout << input.substr(0, k) << endl;
}
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