Cod sursa(job #1108187)
Utilizator | Data | 15 februarie 2014 14:38:17 | |
---|---|---|---|
Problema | Factorial | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.35 kb |
#include<iostream>
#include<fstream>
using namespace std;
ifstream in("fact.in");
ofstream out("fact.out");
int main()
{
int p,i,nr;
in>>p;
if(p==0)out<<"1";
else
if(p%6==5)out<<"-1";
else{i=0;nr=0;
while(i<p)
{
i=i+1;
if(i%6!=5)nr=nr+5;
}
out<<nr;
}
return 0;
}