题解 | 查找学生信息

#include<iostream>
#include<map>
#include<string>
using namespace std;
int main(){
    int n;
    cin>>n;
    map<string,string>student;
    while(n--){
        string index;
        cin>>index;
        cin.ignore(1);
        string name;
        getline(cin,name);
        student.insert(make_pair(index,name));
    }
    int m;
    cin>>m;
    while(m--){
        string index;
        cin>>index;
        auto it=student.find(index);//it是迭代器
        if(it!=student.end()){
            cout<<it->first<<" "<<it->second<<endl;
        }
          else{
            cout<<"No Answer!"<<endl;
        }
    }
}