Cod sursa(job #466878)

Utilizator elfusFlorin Chirica elfus Data 27 iunie 2010 20:24:28
Problema Ratphu Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.52 kb
//dinamica pe bitzisori
#include<stdio.h>
#define LL long long
LL elfus[1<<20][20];
int cifre[30];
int main()
{
LL N;
int p,i,j,k,val=0;
freopen("ratphu.in","r",stdin);
freopen("ratphu.out","w",stdout);
scanf("%lld%d",&N,&p);
do
  {
  cifre[val++]=N%10;
  N/=10;
  }
while(N);
elfus[0][0]=1;
for(i=0;i< (1<<val) ; i++)
   for(j=0;j<p;j++)
     if(elfus[i][j])
       for(k=0;k<val;k++)
	 if(!((1<<k)&i))
	   elfus[i+(1<<k)][(j*10+cifre[k])%p]+=elfus[i][j];
printf("%lld",elfus[(1<<val)-1 ][0]);
return 0;
}