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Cod sursa(job #528166)
#include<fstream.h>
int i=0,j,k=5,p,s=0,l=0,o,u=0,aux;
int main(){
ifstream fin("fact.in");
fin>>p;
fin.close();
ofstream fout("fact.out");
while(l<p)
{ l=0;
k=5;
i++;
while(i/k)
{
l=l+i/k;
k=k*5;
}
}
if(p==0)
fout<<1;
else
fout<<i;
/*j=0;
while(u!=p)
{ j++;
aux=j;
while(aux%5==0)
{
u++;
aux=aux/5;
}
}
fout<<j;*/
fout.close();
return 0;
}