Cod sursa(job #583142)

Utilizator informatician29kill03 informatician29 Data 18 aprilie 2011 11:04:02
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<fstream> 
using namespace std; 
ifstream f("fact.in");
ofstream g("fact.out");
int main() 
{long long p,j,nr,num=5,j2,q;
	f>>p; 
	if(p>=1&&p<=4) {nr=p*5; g<<nr;} 
else if(p==0) g<<1; 
else
{for(j=5;j<=1000*1000;j+=6)
if(p==j) g<<-1;	
for(q=5;q<=1000*1000;q+=6)
	if(p!=q) {j2=q; if(p>=j2+1&&p<=j2+5) g<<p*5-num; num+=5; }}
}