思维题+set URAL 1718 Rejudge

题目传送门

/*
    题意：数据加10组，再删掉第6组数据，问rejudge后最少最多几个作者收到邮件
    思维题：当错在6时结果是不一定，错在7时是一定改变，因为会变成6
    思路没错，但用结构题排序一直WA，代码有毒！学习使用set容器。
*/
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <cmath>
#include <string>
#include <iostream>
#include <set>
using namespace std;

const int MAXN = 1e3 + 10;
const int INF = 0x3f3f3f3f;
string name, res;
set<string> mn, mx;

int main(void)        //URAL 1718 Rejudge
{
//    freopen ("H.in", "r", stdin);

    int n;    scanf ("%d", &n);
    for (int i=1; i<=n; ++i)
    {
        cin >> name >> res;
        if (res == "CE")    continue;
        else if (res == "AC")
        {
            mx.insert (name);    continue;
        }
        else
        {
            int x;    scanf ("%d", &x);
            if (x == 6)    mx.insert (name);
            else if (x == 7)
            {
                mn.insert (name);    mx.insert (name);
            }
        }
    }

    printf ("%d %d
", mn.size (), mx.size ());

    return 0;
}