Jungol (Java) - 1856 : 숫자사각형2

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JUNGOL

 

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n, m;
        n = sc.nextInt();
        m = sc.nextInt();
        int arr[][] = new int[n][m];
        int num = 1;

        for (int i = 0; i < n; i++) {
            if (i % 2 == 0) {
                for (int j = 0; j < m; j++) {
                    arr[i][j] = num;
                    num++;
                }
            } else {
                for (int j = m - 1; j >= 0; j--) {
                    arr[i][j] = num;
                    num++;
                }
            }
        }
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                System.out.print(arr[i][j] + " ");
            }
            System.out.println();
        }
    }
}