Cod sursa(job #644074)

Utilizator mihai.plesaPlesa Mihail Iulian mihai.plesa Data 5 decembrie 2011 09:54:42
Problema Factorial Scor 25
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<cstdio>
using namespace std;
int main()
{FILE*f=fopen("fact.in","r");
FILE*g=fopen("fact.out","w");
int n,p,s=0,p1,ok=0,k=2;
fscanf(f,"%d",&p);
n=p*5;
int x=p;
while(s!=x){
	s=0;
	p1=5;
	while(n/p1!=0){
		s=s+(n/p1);
		p1=p1*5;
	}
	p--;
	n=p*5;
	ok=1;
}
if(ok==1)
	fprintf(g,"%d",(p+1)*5);
if(ok==0)
	fprintf(g,"1");
}