Cod sursa(job #444095)
| Utilizator | Data | 19 aprilie 2010 13:30:56 | |
|---|---|---|---|
| Problema | Kperm | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.64 kb |
#include<stdio.h>
#define MOD 666013
#define ll long long
int n,k,ras,c,r;
int main ()
{
int i,j;
freopen("kperm.in","r",stdin);
freopen("kperm.out","w",stdout);
scanf("%d%d",&n,&k);
if(k%2==0)
{
printf("0\n");
return 0;
}
c=n/k;
r=n%k;
ras=1;
for(i=2;i<=r;i++)
ras=((ll)ras*i)%MOD;
for(i=2;i<=k-r;i++)
ras=((ll)ras*i)%MOD;
for(i=2;i<=c+1;i++)
for(j=1;j<=r;j++)
ras=((ll)ras*i)%MOD;
for(i=2;i<=c;i++)
for(j=1;j<=k-r;j++)
ras=((ll)ras*i)%MOD;
printf("%d\n",ras);
return 0;
}
