Cod sursa(job #1481052)
Utilizator | Data | 3 septembrie 2015 18:29:21 | |
---|---|---|---|
Problema | Factorial | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.29 kb |
#include<fstream>
using namespace std;
long long i,p,n,nr,x;
int main()
{ifstream f("factorial.in");
ofstream g("factorial.out");
f>>p;
if(p==0)
n=1;
else
for(i=5;i<=p*5;i=i+5)
{x=i;
while(x%5==0)
{nr++;
x=x/5;
}
if(nr==p)
n=i;
}
if(n==0)
n=-1;
g<<n;
return 0;
}