题解 | #查找学生信息#

map的简单使用，没啥好说的
#include <iostream>
#include<map>
using namespace std;

struct student {
	string cno;
	string name;
	string gender;
	int age;

};

map<string, student> mymap;

int main() {
	int n,m;
	while (cin >> n) {
		mymap.clear(); // map的初始化
		for (int i = 0; i < n; i++) {
			student temp;
			cin >> temp.cno >> temp.name >> temp.gender >> temp.age;
			mymap[temp.cno] = temp;
		}
		cin >> m;
		for (int i = 0; i < m; i++) {
			string temp;
			cin >> temp;
			if (mymap.find(temp) != mymap.end()) {
				cout << mymap[temp].cno <<' '<< mymap[temp].name<<' ';
				cout << mymap[temp].gender << ' '<<mymap[temp].age;
				cout << endl;
			}
			else cout << "No Answer!" << endl;
		}

	}

	return 0;
}