Cod sursa(job #178387)
| Utilizator |  Avramescu Andrei me_andy |
Data | 14 aprilie 2008 15:19:17 |
|---|---|---|---|
| Problema | 12-Perm | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.31 kb |
#include<fstream.h>
#define max 1048575
ifstream f("12perm.in");
ofstream g("12perm.out");
int r1,r2,r3,r4,n,i,aux;
int main()
{
f>>n;
r1=1;
r2=2;
r3=6;
r4=12;
for(i=5;i<=n;i++)
{
aux=r4;
r4=(r4+r2+((i-2)<<1))&max;
r2=r3;
r3=aux;
}
g<<r4;
g.close();
f.close();
return 0;
}