Cod sursa(job #306172)
Utilizator | Data | 19 aprilie 2009 22:05:18 | |
---|---|---|---|
Problema | Factorial | Scor | 5 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.49 kb |
#include <fstream>
#include <vector>
using namespace std;
ifstream in("fact.in");
ofstream out("fact.out");
long i,s,n;
vector<long> x;
vector<long> sume;
void breakdiv2(long x)
{
while(!(x%5))
{s--;x/=5;}
}
void breakdiv(long x)
{
while(!(x%5))
{s++;x/=5;}
}
int main()
{
in>>n;
if(!n)
{
out<<1;
return 0;
}
else
{
for(i=625; s<n; i+=625)
{breakdiv(i);s+=4;}i-=625;
while(s>n)
{breakdiv2(i);i-=5;}
if(s<n)
s++;
out<<i;
}
return 0;
}