Cod sursa(job #1706637)

Utilizator LucianTLucian Trepteanu LucianT Data 22 mai 2016 22:10:18
Problema Ratphu Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.57 kb
#include <bits/stdc++.h>
#define maxN 20
using namespace std;
int i,j,v[maxN],nrc,p,maxC,mask;
long long dp[maxN][1<<maxN],n;
int main()
{
    freopen("ratphu.in","r",stdin);
    freopen("ratphu.out","w",stdout);
    scanf("%lld %d",&n,&p);
    while(n)
        v[nrc++]=n%10,n/=10;
    maxC=(1<<nrc);
    dp[0][0]=1;
    for(mask=0;mask<maxC-1;mask++)
        for(i=0;i<nrc;i++)
            if(!(mask&(1<<i)))
                for(j=0;j<p;j++)
                    dp[(10*j+v[i])%p][mask|(1<<i)]+=dp[j][mask];
    printf("%lld",dp[0][maxC-1]);
    return 0;
}