Cod sursa(job #2781408)

Utilizator CristiBota3Cristian Bota Avram CristiBota3 Data 9 octombrie 2021 13:36:33
Problema Factorial Scor 45
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.61 kb
#include <iostream>
#include <fstream>
using namespace std;



int main()
{
    ifstream fin ("fact.in");
    ofstream fout ("fact.out");

    int p,x,nr5=0;
    fin>>p;

    if(p==0)
    {
        fout<<1;
    }
    else
    {
       nr5=0;
       x=0;
       while(nr5<p)
       {    x+=5;
           int copx=x;

            while(copx!=0 && copx%5==0)
            {
                copx/=5;
                nr5++;
            }
       }

       if(nr5==p)
       {
           fout<<x;
       }
       else
       {
           fout<<-1;
       }
    }




    return 0;
}