[CHALLENGE] Matrix Rotation

Question

The task is. You have a Matrix NxN. You should rotate it on 90 degrees.

Example:
N = 3
Input:
1 2 3
4 5 6
7 8 9
Output:
7 4 1
8 5 2
9 6 3

Levels:
1) just rotate matrix
2) matrix is 1D array (1 2 3 4 5 6 7 8 9)
3) input and output is the same memory block (the same array)

Answer 1

https://code.sololearn.com/cFtt4N56b2Xy/?ref=app

Answer 2

My version
https://code.sololearn.com/cJcKujUAH71v

Answer 3

Here's mine

https://code.sololearn.com/cs9jlY8cwvng/?ref=app

Answer 4

one liner
https://code.sololearn.com/cT4TViVRNfJ5/?ref=app

Answer 5

Check my solution
https://code.sololearn.com/cgXCGS96v146/?ref=app

Answer 6

https://www.sololearn.com/discuss/1138295/?ref=app

it is a library made by me. It has a transpose function. it will rotate it.
there are many other features.

Answer 7

https://code.sololearn.com/cock3GIEoIet/?ref=app