题解 | #C翻转#

import java.util.Arrays;
import java.util.Scanner;

public class Main {

    public static void swapMatrix(int[][] temp) {
        int len = temp.length;
        int low = 0, high = len - 1;
        while (low < high) {
            int[] t1 = Arrays.copyOf(temp[low], len);
            System.arraycopy(temp[high], 0, temp[low], 0, len);
            System.arraycopy(t1, 0, temp[high], 0, len);
            low++;
            high--;
        }


        for (int i = 0; i < len; i++) {
            for (int j = 0; j <= i; j++) {
                int k = temp[i][j];
                temp[i][j] = temp[j][i];
                temp[j][i] = k;
            }
        }
    }
    public  static void matrixReverse(int[][] matrix, int startRow, int endRow,
                                      int startCOl, int endCol, boolean flag) {
        int len = endRow - startRow + 1;
        int[][] temp = new int[len][len];
        if (flag) {
            for (int i = 0; i < len; i++) {
                for (int j = 0; j < len; j++) {
                    temp[i][j] = matrix[i + startRow][j + startCOl];
                }
            }

            swapMatrix(temp);

            for (int i = 0; i < len; i++) {
                for (int j = 0; j < len; j++) {
                    matrix[i + startRow][j + startCOl] = temp[i][j];
                }
            }
        } else {
            for (int i = 0; i < len; i++) {
                for (int j = 0; j < len; j++) {
                    temp[i][j] = matrix[j + startRow][i + startCOl];
                }
            }
            swapMatrix(temp);
            for (int i = 0; i < len; i++) {
                for (int j = 0; j < len; j++) {
                    matrix[startRow + j][startCOl + i] = temp[i][j];
                }
            }

        }
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            int[][] matrix = new int[5][5];
            for (int i = 0; i < 5; i++) {
                for (int j = 0; j < 5; j++) {
                    matrix[i][j] = scanner.nextInt();
                }
            }
            int op1 = scanner.nextInt();
            int op2 = scanner.nextInt();
            int startRow = scanner.nextInt() - 1;
            int startCol = scanner.nextInt() - 1;
            matrixReverse(matrix, startRow,
                          (op2 == 2 ? startRow + 1 : startRow + 2),
                          startCol,
                          (op2 == 2 ? startCol + 1 : startCol + 2),
                          op1 == 1
                         );

            for (int i = 0; i < 5; i++) {

                for (int j = 0; j < 5; j++) {

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

                }
                System.out.println();
            }

        }
    }
}