✅Anti clockwise(Contest)

Anti clockwise easy Time Limit: 2 sec Memory Limit: 128000 kB

Problem Statement :

Given an N*N matrix. Print the elements of the matrix in anticlockwise order (see the sample for better understanding). Input First line contains N. N lines follow each containing N space seperated integers.

Constraints:- 2 <= N <= 500 1 <= Mat[i][j] <= 1000 Output Output N*N integers in a single line separated by spaces, which are the elements of the matrix in anti-clockwise order.

Example Sample Input 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Sample output 1 5 9 13 14 15 16 12 8 4 3 2 6 10 11 7

Explanation: We start from 1 , go down till 13 and then go right till 16 then go up till 4 , then we go left till 2 then down and so on in anti-clockwise fashion .

Sample Input 3 1 2 3 4 5 6 7 8 9

Sample output 1 4 7 8 9 6 3 2 5

link: https://my.newtonschool.co/playground/code/hm54i3ux09bk/

import java.io.*; // for handling input/output
import java.util.*; // contains Collections framework

// don't change the name of this class
// you can add inner classes if needed
class Main {
    public static void main (String[] args) {
        Scanner sc = new Scanner (System.in);
        int n = sc.nextInt();
        int arr[][] = new int[n][n];
        for(int i=0; i<n; i++){
            for(int j=0; j<n; j++){
                arr[i][j] = sc.nextInt();

            }

        }
        // Your code here
        int i=0;
        int startrow = 0;
        int startcol = 0;

        while(startrow < n && startcol < n){
            for(i=startrow; i<n; i++){
           System.out.print(arr[i][startcol] + " ");
            }
            startcol++;
            for(i=startcol; i<n; i++){
                System.out.print(arr[n-1][i]+" ");

            }
            int m=n;
            m--;
            if(startrow<m){
                for(i=m-1; i>=startrow; i--){
                    System.out.print(arr[i][n-1] + " ");

                }
                n--;
            }
            if(startcol<n){
                for(i=n-1; i>=startcol; i--){
                    System.out.print(arr[startrow][i] + " ");

                }
                startrow++;
            }
            //System.out.print(arr[1][2]);
            //return;
        }
        //System.out.print(arr[1][2]);
        
    }
}