Cod sursa(job #913586)
Utilizator | Data | 13 martie 2013 17:10:27 | |
---|---|---|---|
Problema | Patrate2 | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.46 kb |
#include<fstream>
using namespace std;
ifstream f ("patrate2.in");
ofstream g("patrate2.out");
int n,a[10000],i,j,t;
void inmultire(int a[],int x){
for(i=1;i<=a[0];++i,t/=10)
a[i]=(t+=a[i]*x)%10;
while(t){
a[++a[0]]=t%10;
t/=10;
}
}
int main(){
f>>n;
a[0]=a[1]=1;
for(i=1;i<=(n*n)/4;++i)
inmultire(a,16);
for(i=1;i<=n;++i)
inmultire(a,i);
if(n%2)
inmultire(a,2);
for(i=a[0];i>0;--i)
g<<a[i];
return 0;
}