Rotate By 90 Degree

Rotate By 90 Degree

Description:
In this problem we are required to rotate a matrix by 90 degrees, so for that we need to first transpose the matrix and then mirror it's row elements, basically swap its row elements like first with last and so on, watch the video for better understanding.

Question Name: 
Rotate By 90 Degree

Question Link :
https://www.pepcoding.com/resources/online-java-foundation/2d-arrays/rotate-by-90-degree-official/ojquestion

Question Statement: 
1. You are given a number n, representing the number of rows and number of columns.
2. You are given n*n numbers, representing elements of 2d array a.
3. You are required to rotate the matrix by 90 degree clockwise and then display the contents using display function.
*Note - you are required to do it in-place i.e. no extra space should be used to achieve it .*

Topic: #Basics_of_Java #Functions_and_Arrays #2D_Arrays

Used #DataStructure: #Array #2dArray

#TimeComplexity: O(n^2)

#SpaceComplexity: O(1)

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#Arrays #2dArrays #IntroductiontoDataStructures #TraversingArrays


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