boj)16505 - 별
2020. 11. 14. 11:27ㆍPS/boj
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import java.io.*;
import java.util.Scanner;
public class boj_16505 {
static char[][] map;
static int N, length;
static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
public static void main(String[] args) throws IOException {
Scanner sc = new Scanner(System.in);
N = sc.nextInt();
length = (int)Math.pow(2, N);
map = new char[length][length];
func(0, 0, length);
// print
for (int i = 0; i < length; i++) {
for (int j = 0; j < length; j++) {
if (j == length - i) break;
if (map[i][j] == '*') bw.write(map[i][j]);
else bw.write(' ');
}
bw.newLine();
}
bw.flush();
bw.close();
}
private static void func(int x, int y, int length) {
// base condition
if (length == 1) {
map[x][y] = '*';
return;
}
// recursion
int newLength = length/2;
func(x, y, newLength);
func(x, y + newLength, newLength);
func(x + newLength, y, newLength);
}
}
|
cs |
- 재귀
- 재귀랑 좀 친해진거 같다.
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