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Cod sursa(job #465648)
#include <cstdio>
#define infile "ratphu.in"
#define outfile "ratphu.out"
#define MaxN 20
char s[MaxN];
int P,uz[MaxN],cif[MaxN],nrc;
long long sol,N;
void gen(int k,long long nr)
{
int i;
if(k>nrc)
{
if(nr%P==0)
sol++;
}
else
for(i=1;i<=nrc;i++)
if(!uz[i])
{
uz[i]=1;
gen(k+1,nr*10+cif[i]);
uz[i]=0;
}
}
void cifre()
{
long long x=N;
while(x)
{
cif[++nrc]=x%10;
x/=10;
}
}
int main()
{
freopen(infile,"r",stdin);
freopen(outfile,"w",stdout);
scanf("%lld",&N);
scanf("%d",&P);
cifre();
gen(1,0);
printf("%lld\n",sol);
fclose(stdin);
fclose(stdout);
return 0;
}