rotation.java

import java.util.Scanner;

public class Playground {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		
		int row = scanner.nextInt();
		int col = scanner.nextInt();
		int numRotations = scanner.nextInt();
		
		int[][] map = new int[row][col];
		for (int i = 0; i < row; i++) {
			for (int j = 0; j < col; j++) {
				map[i][j] = scanner.nextInt();
			}
		}
		
		for (int i = 0; i < numRotations; i++) {
			map = rotate(map, row, col);
		}
		printMap(map, row, col);
	}
	
	public static int[][] rotate(int[][] map, int row, int col) {
		int[][] newMap = new int[row][col];
		int rowStart = 0;
		int colStart = 0;
		
		
		while (rowStart * 2 < row && colStart * 2 < col) {
			// Top
			for (int i = colStart  +1; i < col - colStart; i++) {
				newMap[rowStart][i - 1] = map[rowStart][i];
			}
			// Right
			for (int i = rowStart + 1; i < row - rowStart; i++) {
				newMap[i - 1][col - colStart - 1] = map[i][col - colStart - 1];
			}
			// Bottom
			for (int i = colStart; i < col - colStart - 1; i++) {
				newMap[row- rowStart - 1][i + 1] = map[row - rowStart - 1][i];
			}
			// Left
			for (int i = rowStart; i < row - rowStart - 1; i++) {
				newMap[i + 1][colStart] = map[i][colStart];
			}
			rowStart++;
			colStart++;
		}

		return newMap;
	}
	
	public static void printMap(int[][] map, int row, int col) {
		for (int i = 0; i < row; i++) {
			for (int j = 0; j < col; j++) {
				System.out.printf("%d ", map[i][j]);
			}
			System.out.println();
		}
	}
}