Pagini recente » Cod sursa (job #1420464) | Cod sursa (job #913345) | Cod sursa (job #3191132) | Cod sursa (job #86763) | Cod sursa (job #2587328)
#include <cstdio>
#include <algorithm>
#define int long long
using namespace std;
long long dp[(1<<18)+1][25];
int digits[20];
signed main() {
freopen("ratphu.in","r",stdin);
freopen("ratphu.out","w",stdout);
int n,p,numberOfDigits=0;
scanf("%lld %lld",&n,&p);
do {
digits[++numberOfDigits]=n%10;
n/=10;
}while(n);
reverse(digits + 1,digits+numberOfDigits + 1);
dp[0][0]=1;
for(int i=0;i<(1<<18);++i) {
for(int j=0;j<p;++j) {
if(dp[i][j])
for(int k=1;k<=numberOfDigits;++k) {
if((i&(1<<(k-1)))==0) {
dp[i|(1<<(k-1))][(j*10+digits[k])%p]+=dp[i][j];
}
}
}
}
printf("%lld",dp[(1<<numberOfDigits)-1][0]);
return 0;
}