Problem:

AcCode:

import java.util.Scanner;

public class BASIC_6 {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		int[][] nums = new int[n][n];
		for (int i = 0; i < nums.length; i++) {
			nums[i][0] = 1;
		}
		for(int i = 1;i<nums.length;i++) {
			for (int j = 1; j <= i; j++) {
				nums[i][j] = nums[i-1][j-1]+nums[i-1][j];
			}
		}
		for (int i = 0; i < nums.length; i++) {
			for (int j = 0; j < nums[i].length; j++) {
				if(nums[i][j]!=0) {
					System.out.print(nums[i][j]+" ");
				}
			}
			System.out.println();
		}
	}
}