求救

#include <bits/stdc++.h>
using namespace std;
char s[110];

int main()
{
    freopen("poker.in","r",stdin);
    freopen("poker.out","w",stdout);
    int n,sum = 0,ans = 52;
    cin >> n;
    int z = n * 2;
    for(int i = 1;i <= z;i += 2)
        cin >> s[i] >> s[i + 1];
    
    for(int i = 1;i <= z;i += 2){
        bool flag = 1;
        for(int j = 1;j <= z;j += 2){
            if(s[i] == s[j] && s[i + 1] == s[j + 1])
            	if(i != j) flag = 0;
        }
        if(flag || i == 1) sum ++;
    }
    ans = ans - sum;
	cout << ans;

    return 0;
}