Problem C: 矩阵转置

Description

输入N*N的矩阵，输出它的转置矩阵。

Input

第一行为整数N。 
接着是一个N*N的矩阵。

Output

转置矩阵,注意，每两个数之间用一个空格隔开，行末没有空格

Sample Input

21 21 2

Sample Output

1 12 2

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][N];

        for (int i = 0; i < N; i++) {

            for (int j = 0; j < N; j++) {

                a[i][j] = sc.nextInt();

            }

        }

        int[][] a2 = new int[N][N];

        int[] a3 = new int[N];

        for (int i = 0; i < a.length; i++) {

            for (int j = 0; j < a[i].length; j++) {

                a2[i][j] = a[j][i];

            }

        }

        for (int i = 0; i < a2.length; i++) {

            for (int j = 0; j < a2[i].length - 1; j++) {

                System.out.print(a2[i][j] + " ");

            }

 

            for (int p = 0; p < N; p++) {

                a3[p] = a2[i][p];

            }

 

            System.out.print(a3[N - 1]);

            System.out.println();

 

        }

 

    }

}