Cod sursa(job #354847)

Utilizator dany123Florea Daniel dany123 Data 9 octombrie 2009 18:53:45
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include<fstream>
#include<iostream>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
int main () {
	long int p,n=25,nr=0;
	cin>>p;
	if (p<0 || p>100000000) {g<<-1; return 0;}
		else if (p==0) g<<1;
			else {while (n<p*5) {n*=n; nr++;} g<<p*5-5*nr;}
cout<<p*5-5*nr;
f.close(); g.close();
}