Cod sursa(job #3229041)

Utilizator Traian_7109Traian Mihai Danciu Traian_7109 Data 13 mai 2024 12:28:56
Problema Ratphu Scor 50
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.54 kb
#include <bits/stdc++.h>

using namespace std;

int dp[1 << 18][20];

int main() {
    ifstream fin("ratphu.in");
    ofstream fout("ratphu.out");
    string n;
    int p;
    fin >> n >> p;
    dp[0][0] = 1;
    for (int mask = 1; mask < (1 << n.size()); mask++) {
        for (int i = 0; i < n.size(); i++) {
            for (int r = 0; r < p; r++) {
                dp[mask][(r * 10 + (n[i] - '0')) % p] += dp[mask ^ (1 << i)][r];
            }
        }
    }
    fout << dp[(1 << n.size()) - 1][0] << "\n";
    return 0;
}