HDOJ 2135 Rolling table

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HDACM 2135

逆时针旋转90度等于顺时针旋转270度

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 m = sc.nextInt();            char grids[][] = new char[n][n];            for (int i = 0; i < n; i++) {                String str = sc.next();                for (int j = 0; j < n; j++) {                    grids[i][j] = str.charAt(j);                }            }            if (m >= 0) {                m = m % 4;            } else {                m = (m % 4 + 4)%4;            }            if (m == 0) {                for (int i = 0; i < n; i++) {                    for (int j = 0; j < n; j++) {                        System.out.print(grids[i][j]);                    }                    System.out.println();                }            }            if (m == 1) {                for (int i = 0; i < n; i++) {                    for (int j = n-1; j >= 0; j--) {                        System.out.print(grids[j][i]);                    }                    System.out.println();                }            }            if (m == 2) {                for (int i = n-1; i >= 0; i--) {                    for (int j = n-1; j >= 0; j--) {                        System.out.print(grids[i][j]);                    }                    System.out.println();                }            }            if (m == 3) {                for (int i = n-1; i >= 0; i--) {                    for (int j = 0; j < n; j++) {                        System.out.print(grids[j][i]);                    }                    System.out.println();                }            }        }        sc.close();    }}

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