题解

#include<iostream>
#include<algorithm> 
using namespace std;
struct person{
	string name,sum;
}stu[101];
int main(){
	int n,m=0;
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>stu[i].name>>stu[i].sum;
	}
	string part;
	cin>>part;
	
	for(int i=0;i<n;i++){
		if(stu[i].sum.find(part)!=-1){
			m=1;
			cout<<stu[i].name<<" "<<stu[i].sum<<endl;
		}
	}
	if(m==0){
		cout<<"None.";
	}
	return 0;
}