[ASSIGNMENT] Rotating a matrix to 90 degrees

Question

Given a matrix represented as int[a][a], Rotate it 90 degrees anticlockwise in-place. ( In place means minimal extra memory to be used, ie, don't make a new array to copy into)?

For Example
Input :

1 2 3
4 5 6
7 8 9

Output :

3 6 9
2 5 8
1 4 7

Bonus: Rotate it 90 degrees clockwise in-place.

Answer 1

https://code.sololearn.com/ce1sh888LSbY/?ref=app

Answer 2

A good occasion to train my python list comprehension:
the code transforms a matrix in place in many ways. You can change the matrix size at the code's line 3.

https://code.sololearn.com/cRMGu3jC6l8D/#py

Thanks for this challenge, Pawan. Advice : you should edit your question with [Assignment] in the title to make it more visible. That's the keyword Sololearners are now used to see : )

Answer 3

Not in place but in one line https://code.sololearn.com/cT4TViVRNfJ5/?ref=app

Answer 4

I used a rotating Matrix to solve this Challenge:

https://code.sololearn.com/cc6cM7kQqQrM/?ref=app

Answer 5

yeah! i'm very happy with your question...from past 10 days.i'm studying NUMPY...i have some doubts in SLICING...now i'm clear...
thank you for this challange...

https://code.sololearn.com/cox43bn4M8bw/?ref=app

Answer 6

[Advice], thank you Cépagrave

Answer 7

https://code.sololearn.com/cL9Px770lnQI/?ref=app

Answer 8

~ swim ~ yep . you can add ^.-

Answer 9

yeah! i'm on my way to my first answer