杨辉三角

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