Cod sursa(job #2031890)

Utilizator alexandra_paticaAndreea Alexandra Patica alexandra_patica Data 3 octombrie 2017 22:58:47
Problema Ratphu Scor 30
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.65 kb
#include <fstream>
using namespace std;
ifstream f ("ratphu.in");
ofstream g ("ratphu.out");

long long n, p, aux, w, nr;
short a[20], ap[20], st[100];

void perm(int k)
{
    for (int x=1; x<=w; x++){
        st[k]=a[x];
        if (ap[x]==0){
            ap[x]=1;
            if (k==w){
                aux=0;
                for (int i=1; i<=w; i++) aux=aux*10+st[i];
                if (aux%p==0) nr++;
            }
            else perm(k+1);
            ap[x]=0;
        }
    }
}

int main ()
{
    f >> n >> p;
    while (n){
        a[++w]=n%10;
        n/=10;
    }
    perm(1);
    g << nr << '\n';
    return 0;
}