Cod sursa(job #671085)
| Utilizator |  Mitrea Andrei Ionut mitrutstrut |
Data | 30 ianuarie 2012 18:20:18 |
|---|---|---|---|
| Problema | Factorial | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.28 kb |
#include<fstream.h>
int desc(long long n){
int p=0;
while(n%5==0){
n=n/5;
p++;
}
return p;
}
int main(){
long x=5,p;
ifstream f("fact.in");
ofstream g("fact.out");
f>>p;
if(p==0) g<<1<<"\n";
else{
while(p>0){
p-=desc(x);
x+=5;
}
g<<x-5;
}
g.close();
return 0;
}