题解 | 查找学生信息

#include <bits/stdc++.h>
using namespace std;

map<string,string> students;

int main() {
    int n;
    cin>>n;
    getchar();
    for(int i=0;i<n;i++){
        string str;
        getline(cin,str);
        int pos = str.find(" ");
        string id = str.substr(0,pos);
        students[id]=str;
    }
    int m;
    cin>>m;
    for(int i=0;i<m;i++){
        string a;
        cin>>a;
        if(students[a]=="") cout<<"No Answer!"<<endl;
        else cout<<students[a]<<endl;
    }
    return 0;
}