Cod sursa(job #808295)

Utilizator AleAnd95Musat Andreea Alexandra AleAnd95 Data 6 noiembrie 2012 16:43:56
Problema Factorial Scor 5
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
ifstream in("fact.in");
ofstream out("fact.out");
int main () {
	int p,n,k;
	in>>p;
	if (p>=1 && p<5) {out<<5*n;return 0;}
	if(p==0) {out<<"1"; return 0;}
	k=(p-5)/6; 
	if (k==0) {out<<"-1"; return 0;}
	if(k>=0)
		{n=(p-k-1)*5;
		out<<n;}
	return 0;
	
}