whats wrong could you send some tests pls
if you want source I'll give it

CODE:




#include <iostream>
#include <string>
#include <map>
using namespace std;
map<string, int> a;
int main()
{
    int n,j;
    cin >> n;
    string s,s1;
    int min=0, max=0;
    cin.ignore();
    for(int i=0; i<n; i++)
    {
            getline(cin,s);
            j=0;
            while(s[j]!=' ')
            {
                          j++;
            }
            s1=s.substr(0,j+1);
            if(s[s.size()-1]=='C' && s[s.size()-2]=='A'){ if(a[s1]!=1 && a[s1]!=3) {max++; if(a[s1]!=2) a[s1]=1; else a[s1]=3;}}

            else if(s[s.size()-1]=='E' && s[s.size()-2]=='C'){ if(a[s1]!=1 && a[s1]!=3) {max++;if(a[s1]!=2) a[s1]=1; else a[s1]=3;}}

            else if(s[s.size()-1]=='7'){ if(a[s1]!=1 && a[s1]!=3) {max++;if(a[s1]!=2) a[s1]=1; else a[s1]=3;}
                                                             if(a[s1]!=2 && a[s1]!=3)  {min++;if(a[s1]!=1) a[s1]=2; else a[s1]=3;}}
            else if(s[s.size()-1]=='6'){ if(a[s1]!=1 && a[s1]!=3) {max++;if(a[s1]!=2) a[s1]=1; else a[s1]=3;}}
            else continue;
    }
    cout << min << ' ' << max << endl;
    return 0;
}

Have you ever heard about codestyle and code formatting? No offence, but the chance that one will read such your code is minimal.

Anyway, your fault is in CE decisions.
Just try:
> 1
> h1ci CE
The answer should be:
> 0 0