[백준 조합] 녹색거탑 C++

https://www.acmicpc.net/problem/24723

24723번: 녹색거탑

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    int N;
    cin >> N;
    
    cout << pow(2, N) << endl;
    return 0;
}