Cod sursa(job #36079)
Utilizator | Ionescu Robert Marius Robytzza | Data | 22 martie 2007 22:19:11 |
---|---|---|---|
Problema | Factorial | Scor | 55 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.33 kb |
#include<fstream.h>
int main(){
ifstream fin("fact.in");
ofstream fout("fact.out");
int P,nr,x=0,N=0;
fin>>P;
if (P==0)
fout<<1;
else
while (N!=P){
x+=5;
nr=x;
while (nr%25==0){
nr/=5;
N++;}
N++;
}
if (P<0)
x=-1;
fout<<x;
fin.close();
fout.close();
return 0;
}