Cod sursa(job #604619)

Utilizator mihai995mihai995 mihai995 Data 23 iulie 2011 18:54:28
Problema Ratphu Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.5 kb
#include <fstream>
using namespace std;

const int N=20;
int p,nr;
char s[N];
bool use[N];

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

void bkt(int p,int val)
{
    if (!s[p])
    {
        nr+=!val;
        return;
    }
    for (int i=0;s[i];i++)
        if (!use[i])
        {
            use[i]=true;
            bkt(p+1,(val*10+s[i]-'0')%p);
            use[i]=false;
        }
}

int main()
{
    in>>s>>p;
    bkt(1,0);
    out<<nr<<"\n";
    return 0;
}