题解 | #截取字符串#
截取字符串
http://www.nowcoder.com/practice/a30bbc1a0aca4c27b86dd88868de4a4a
#include <iostream>
#include <string>
using namespace std;
int main()
{
string strIn;
int n;
while(cin>>strIn>>n) {
string strOut;
for(int i = 0; i < n; i++) {
strOut += strIn[i];
}
cout<<strOut<<endl;
}
}
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