Rotate by 90 degree
Basic Accuracy: 47.85% Submissions: 18540 Points: 1

Given a square matrix mat[][] of size N x N. The task is to rotate it by 90 degrees in anti-clockwise direction without using any extra space.

Input:
The first line of input contains a single integer T denoting the number of test cases. Then T test cases follow. Each test case consist of two lines. The first line of each test case consists of an integer N, where N is the size of the square matrix.The second line of each test case contains N x N space separated values of the matrix mat.

Output:
Corresponding to each test case, in a new line, print the rotated array.

Constraints:
1 ≤ T ≤ 50
1 ≤ N ≤ 50
1 <= mat[][] <= 100

Example:
Input:
2
3
1 2 3 4 5 6 7 8 9
2
5 7 10 9

Output:
3 6 9 2 5 8 1 4 7
7 9 5 10

Explanation:
Testcase 1:
Matrix is as below:
1 2 3
4 5 6
7 8 9

Rotating it by 90 degrees in anticlockwise directions will result as below matrix:
3 6 9
2 5 8
1 4 7

 

to report an issue on this page.

Editorial

We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?

Yes

All Submissions

My Submissions:

Login to access your submissions.

Output Window