杭电oj2032(JAVA

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