Cod sursa(job #1395941)

Utilizator mircea.dobreanuMircea Dobreanu mircea.dobreanu Data 21 martie 2015 20:05:24
Problema 12-Perm Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;

ifstream fin("12-perm.in");
ofstream fout("12-perm.out");

long long countPermutations(long long n)
{
	const long long kMod = (1 << 20);
	if (n == 1)
		return 1;

	return n * (n - 1) % kMod;
}

int main()
{
    int n;    fin >> n;
	fout << countPermutations(n) << '\n';
	return 0;
}