Ositus

input/code.cpp: In function 'int main()':
input/code.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 1; j < x.size(); j++)
                         ~~^~~~~~~~~~

#include <iostream>
#include <cmath>
#include <set>

using namespace std;

int main()
{
    string x;
    cin >> x;

    int n = pow(2, x.size() - 1);

    int tulos = 0;

    for (int i = 1; i <= n; i++)
    {
        set<char> nahdyt;

        bool kelpaa = true;

        nahdyt.insert(x[0]);
        int r = i;
        for (int j = 1; j < x.size(); j++)
        {
            if (r % 2 == 1)
                nahdyt.clear();
            r >>= 1;
            if (nahdyt.find(x[j]) != nahdyt.end())
                kelpaa = false;
            nahdyt.insert(x[j]);
        }

        if (kelpaa)
            tulos++;
    }

    cout << tulos << "\n";
}

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5

Group: 2, 3

Verdict: WRONG ANSWER

Test 6

Group: 3

Verdict: WRONG ANSWER

Test 7

Group: 3

Verdict: WRONG ANSWER