URI Online Judge | 1318 Fake Tickets Solution

URI Online Judge | 1318 Fake Tickets
Language:C++
Solution:

#include <iostream>
#include <cstdio>
#include <map>
using namespace std;

int main()
{


    int N,M,num,fakeCount;

    while(cin>>N>>M)
    {
        fakeCount = 0;
        map<int,int> tickets;
        fakeCount = 0;
        if(N==0&&M==0)
            break;


        for(int i = 0; i<M; i++)
        {
          cin>>num;
            tickets[num]++;
          }

    map<int,int>::iterator i;
    for( i = tickets.begin();i!=tickets.end();i++){
          if(i->second>1)
          fakeCount++;


    }
    cout<<fakeCount<<endl;


    }



}