Given a square matrix, swap the element of major and minor diagonals.
Major Diagonal Elements of a Matrix :
The Major Diagonal Elements are the ones that occur from Top Left of Matrix Down To Bottom Right Corner. The Major Diagonal is also known as Main Diagonal or Primary Diagonal.
Minor Diagonal Elements of a Matrix :
The Minor Diagonal Elements are the ones that occur from Top Right of Matrix Down To Bottom Left Corner. Also known as Secondary Diagonal.
Input : 0 1 2 3 4 5 6 7 8 Output : 2 1 0 3 4 5 8 7 6
The Simple thing one should know is that the indexes of Primary or Major diagonal are same i.e. lets say A is matrix then A will be a Major Diagonal element and sum of indexes of Minor Diagonal is equal to size of Matrix. Lets say A is a matrix of size 3 then A will be Minor Diagonal element.
Below is the implementation of above approach :
2 1 0 3 4 5 8 7 6
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Improved By : Mithun Kumar