Cod sursa(job #2380449)
| Utilizator | Data | 14 martie 2019 22:04:07 | |
|---|---|---|---|
| Problema | Kperm | Scor | 100 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva de probleme | Marime | 0.64 kb |
#include <fstream>
#define MOD 666013
using namespace std;
ifstream f("kperm.in");
ofstream g("kperm.out");
long long n,k,c,r,i,a,rez;
int main()
{
f>>n>>k;
c=n/k;
r=n%k;
if(k%2==0)
{
g<<"0";
return 0;
}
rez=1;a=1;
for(i=1;i<=c+1;i++)
a=(a*i)%MOD;
for(i=1;i<=r;i++)
rez=(rez*a)%MOD;
a=1;
for(i=1;i<=c;i++)
a=(a*i)%MOD;
for(i=1;i<=k-r;i++)
rez=(rez*a)%MOD;
a=1;
for(i=1;i<=r;i++)
a=(a*i)%MOD;
rez=(rez*a)%MOD;
a=1;
for(i=1;i<=k-r;i++)
a=(a*i)%MOD;
g<<(rez*a)%MOD;
}
