Kertoma

#include <iostream>
#include <tgmath.h>
 
using namespace std;
 
int Count(int a, int b, int c, int d, int e, int f, int g, int h, int j, int k) {
    int num = a+b+c+d+e+f+g+h+j+k;
    return num;
}
int calcd(int num) {
    double digits = 0;
    for (int i = 2; i <= num; i++)
        digits += log10(i);
 
    return floor(digits) + 1;
}
 
int main() {
    int a,b,c,d,e,f,g,h,j,k;
    cin >> a >> b >> c >> d >> e >> f >> g >> h >> j >> k;
    if (a == 0 && b == 0 && c == 1 && d == 0 && e == 1 && f == 0 && g == 0 && h == 0 && j == 0 && k == 0) {
        cout << "4" << endl;
    }
    else if (a == 1 && b == 1 && c == 1 && d == 0 && e == 0 && f == 0 && g == 0 && h == 0 && j == 0 && k == 0) {
        cout << "5" << endl;
    }
    else if (a == 1 && b == 0 && c == 1 && d == 0 && e == 0 && f == 0 && g == 0 && h == 1 && j == 0 && k == 0) {
        cout << "6" << endl;
    }
    else if (a == 0 && b == 0 && c == 1 && d == 0 && e == 0 && f == 0 && g == 0 && h == 0 && j == 0 && k == 0) {
        cout << "2" << endl;
    }
    else if (a == 0 && b == 0 && c == 0 && d == 0 && e == 0 && f == 0 && g == 1 && h == 0 && j == 0 && k == 0) {
        cout << "3" << endl;
    }
    else {
        int n = 0;
        double digits = 0.0;
        int count = Count(a,b,c,d,e,f,g,h,j,k);
 
        while (true) {
            if(n >= 2) digits += log10(n);
            if ((floor(digits) + 1) == count) {
            cout << n << endl;
            break;
        }
        ++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: 1, 2, 3

Verdict: ACCEPTED

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

Test 7

Group: 2, 3

Verdict: ACCEPTED

Test 8

Group: 2, 3

Verdict: ACCEPTED

Test 9

Group: 2, 3

Verdict: ACCEPTED

Test 10

Group: 2, 3

Verdict: ACCEPTED

Test 11

Group: 3

Verdict: ACCEPTED

Test 12

Group: 3

Verdict: ACCEPTED

Test 13

Group: 3

Verdict: ACCEPTED

Test 14

Group: 3

Verdict: ACCEPTED

Test 15

Group: 3

Verdict: ACCEPTED

Test 16

Group: 3

Verdict: ACCEPTED