Cod sursa(job #2578860)
Utilizator | Data | 11 martie 2020 17:26:05 | |
---|---|---|---|
Problema | Factorial | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.35 kb |
#include <iostream>
#include <fstream>
using namespace std;
int n,p,c;
ifstream fin("fact.in");
ofstream fout("fact.out");
int main()
{
fin>>p;
n=0;
c=0;
while (c<p)
{
n=n+5;
if (n%25==0) c=c+2;
else c++;
}
if (p==0) fout<<1;
else if (c==p) fout<<n;
else fout<<-1;
}