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- import java.util.Scanner;
- public class Main {
- public static void main(String[] args) {
- Scanner scanner = new Scanner(System.in);
- int n = scanner.nextInt();
- int[][] matrix = new int[n][n];
- for (int i = 0; i < n; i++) {
- for (int j = 0; j < n; j++) {
- if (i == j) {
- matrix[i][j] = 1;
- } else if (i > j) {
- matrix[i][j] = 2;
- } else {
- matrix[i][j] = 0;
- }
- }
- }
- for (int i = 0; i < n; i++) {
- for (int j = 0; j < n; j++) {
- System.out.print(matrix[i][j] + " ");
- }
- System.out.println();
- }
- }
- }
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