题解 | #记票统计#

// HJ94-2 记票统计.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
#include<iostream>
#include<bits/stdc++.h>
#include<unordered_map>

using namespace std;

int main()
{
	int n,k;
	while (cin >> n)
	{
		unordered_map<string, int>mm(n);
		vector<string>name(n);
		int count = 0;
		for (int i = 0; i < n; i++)
		{
			string tmp;
			cin >> tmp;
			mm[tmp] = 0;
			name[i] = tmp;
		}
		cin >> k;
		for (int i = 0; i < k; i++)
		{
			string bmp = "";
			cin >> bmp;
			if (mm.find(bmp) != mm.end())
			{
				mm[bmp]++;
			}
			else
			{
				count++;
			}
		}
		for (int i = 0; i < n; i++)
		{
			cout << name[i] << " : " << mm[name[i]] << endl;
		}
		cout << "Invalid : " << count << endl;
	}
	return 0;
}