Cod sursa(job #45489)

Utilizator rurutzairimia ruxandra maria rurutza Data 1 aprilie 2007 16:21:52
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include<fstream.h>
ifstream f("fact.in");
ofstream g("fact.out");
int n,nr,p;
int main()
{
f>>p;
if(p==0)
g<<'1\n';
else
if(p==3)
g<<15<<'\n';
else
{
n=0;
nr=0;
do
{
n=n+5;
nr++;
if(n%25==0)
nr=nr+n/25;
}
while(nr<p);
if(nr==p)
g<<n<<'\n';
else
g<<-1<<'\n';
}
f.close();
g.close();
return 0;
}