Cod sursa(job #1260147)

Utilizator CostanMiriamCostan Miriam CostanMiriam Data 10 noiembrie 2014 22:14:06
Problema Ratphu Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.52 kb
#include <fstream>

using namespace std;

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

int v[20],i,j,r,n,p;

long long k,d[1<<19][25];

int main () {

    fin>>k>>p;

    while (k!=0) {
        v[n]=k%10;
        k/=10;
        d[1<<n][v[n]%p]=1;
        n++;
    }
    for (i=1;i<(1<<n);i++)
        for (j=0;j<n;j++)
            if (!((1<<j)&i))
                for (r=0;r<p;r++)
                    d[(1<<j)|i][(r*10+v[j])%p]+=d[i][r];
    fout<<d[(1<<n)-1][0]<<"\n";

    return 0;
}