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 + ;

 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=; 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 == )    mx.insert (name);

             else if (x == )

             {

                 mn.insert (name);    mx.insert (name);

             }

         }

     }

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

     return ;

 }