Day 2, Part 1

#include <fstream>
#include <algorithm>
#include <cstring>
using namespace std;

ifstream fin ("data.in");
ofstream fout ("data.out");

char s[100];
int d[500], k;
long long dubl, tripl;

int main()
{
    while(fin>>s){
        for(int i = 'a'; i <= 'z'; i++){
            d[i] = 0;
        }
        for(int i = 0; s[i] != 0; i++){
            d[s[i]]++;
        }
        bool ok1 = true;
        bool ok2 = true;
        for(int i = 'a'; i <= 'z'; i++){
            if(d[i] == 2 && ok1){
                dubl++;
                ok1 = false;
            }
            if(d[i] == 3 && ok2){
                tripl++;
                ok2 = false;
            }
        }
    }
    fout<<dubl * tripl;
    return 0;
}