별 찍기 - 10 (feat. 백준, 2447번)

별 찍기 - 10
https://www.acmicpc.net/problem/2447

2447번: 별 찍기 - 10

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// woohyeon.kim
// https://www.acmicpc.net/problem/2447
#include <iostream>
using namespace std;
char arr[3][3];
void solution(register int i, register int j, register int n) {
    if (i / n % 3 == 1 && j / n % 3 == 1)       cout << " ";
    else
        if (n / 3 == 0)                         cout << "*";
        else                                    solution(i, j, n / 3);
}
int main() {
	ios::sync_with_stdio(false), cin.tie(NULL);
    register int N;
    cin >> N;
    for (register int i = 0, j; i < N; ++i) {
        for (j = 0; j < N; ++j)                 solution(i, j, N);
        cout << "\n";
    }
	return 0;
}
// *&)*@*