Cod sursa(job #155859)

Utilizator dexter_dexMutascu Adrian - Dragos dexter_dex Data 12 martie 2008 10:58:06
Problema Patrate2 Scor 30
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include<stdio.h>   
#include<math.h>   
long long k,x=2,i,a=1,t;
int main ()
{
FILE *f=fopen("patrate2.in","r");
FILE *g=fopen("patrate2.out","w");
fscanf (f,"%lld",&k);
t=k*k-1;
for (i=1;i<=t;i++)
    x=x*2;
for (i=1;i<=k;i++)
    a=a*i;
x=x*a;
fprintf(g,"%lld",x);   
fclose(f);   
fclose(g);   
return 0;   
}