# Rotate Matrix

Moderate
0/80
Average time to solve is 15m
Contributed by

## Problem statement

Given a 2-dimensional matrix of size ‘N’ x ‘M’, rotate the elements of the matrix clockwise.

``````For example:
Input Matrix: [ [ 1, 2, 3 ]
[ 4, 5, 6 ]
[ 7, 8, 9 ] ]

Output Matrix: [ [ 4, 1, 2 ]
[ 7, 5, 3 ]
[ 8, 9, 6 ] ]

The output matrix is generated by rotating the elements of the input matrix in a clockwise direction. Note that every element is rotated only once.
``````
Note :
``````You do not need to print anything; it has already been taken care of. Also, update the given matrix in-place.
``````
Detailed explanation ( Input/output format, Notes, Images )
Constraints :
``````1 <= T <= 10
1 <= N, M <= 100
-10^5 <= data <= 10^5,

where ‘T’ is the number of test cases,  ‘N’ and ‘M’ are the numbers of rows and columns respectively and ‘data’ is the value of the elements of the matrix.
``````
##### Sample Input 1 :
``````1
4 4
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
``````
##### Sample Output 1 :
``````5 1 2 3
9 10 6 4
13 11 7 8
14 15 16 12
``````
##### Explanation of Sample Input 1 :

``````The resulting matrix after rotating the given matrix clockwise is shown above.
``````
##### Sample Input 2 :
``````2
2 2
1 3
4 5
3 3
3 4 5
5 6 7
8 10 20
``````
##### Sample Output 2 :
``````4 1
5 3
5 3 4
8 6 5
10 20 7
``````
Console