URI solve 2006 for beginners in c++

Problem in Details:https://www.urionlinejudge.com.br/judge/en/problems/view/2006

Solution in C++:

 #include <iostream>

using namespace std;

int main()
{
  /*  int a,b;
    while(scanf("%d%d",&a,&b) != EOF){
        int z=(8*60);
        int c=(a*60)+b;
        if(c>420  && c<480){
         cout<<"Atraso maximo: "<<(c-420)<<endl;
        }
        else  cout<<"Atraso maximo: "<<0<<endl;

    }*/
    int a;int sum=0;
    cin>>a;
    for(int i=1;i<=5;i++){
        int b;
        cin>>b;
        if(a==b) sum=sum+1;
    }
    cout<<sum<<endl;
}