Cod sursa(job #2086314)

Utilizator bpetru05Mitoiu Bogdan Petru bpetru05 Data 11 decembrie 2017 20:42:28
Problema Factorial Scor 20
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.28 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
int p,i,pt,r;
ifstream f("fact.in");
ofstream g("fact.out");
int main()
{
	f>>p;
	i=1;
	r=0;
	pt=5;
	while(r<p)
	{
		r=0;
		pt=5;
		while(i/pt!=0)
		{
			r+=i/pt;
			pt*=5;
		}
		if(r<p)
			i++;
		if(r>p)
		{
			i=-1;
			break;
		}
	}
	g<<i;
	
}