Find Matrix Diagonal Sum - Intuition + Dry run + Live code - (Java)

#leetcodequestions #codinginterviewquestions #matrixdiagonalsum
Given a square matrix mat, return the sum of the matrix diagonals.

Only include the sum of all the elements on the primary diagonal and all the elements on the secondary diagonal that are not part of the primary diagonal.


Example 1:

Input: mat = [[1,2,3],
[4,5,6],
[7,8,9]]
Output: 25
Explanation: Diagonals sum: 1 + 5 + 9 + 3 + 7 = 25
Notice that element mat[1][1] = 5 is counted only once.
Example 2:

Input: mat = [[1,1,1,1],
[1,1,1,1],
[1,1,1,1],
[1,1,1,1]]
Output: 8
Example 3:

Input: mat = [[5]]
Output: 5

============================================================
Other playlists in the channel that you can follow:

=======================================================

Please click the LIKE button so that this kind of content can be seen by as many as possible aspiring engineers and professionals. Doing so gives me even more motivation to post such content in the future.
Please comment below and let me know if you have any questions or concerns.

Additionally, don't forget to click the bell symbol to receive notifications and subscribe to the channel.
Follow us on:
----------------------------------------------------------
Created and Instructed by:
Varsha Das
Mid-senior Software Engineer, Content Curator of @Code With Ease

Code With Ease is meant to make problem-solving in programming easier. For DSA preparation, we post topic-specific videos pertaining to Coding Interview topics so that everyone may approach such questions with a clear thought process and achieve the best outcomes. In addition, we make an effort to include different "Primer Series" that teach particular concepts or algorithms. We want to be the one-stop solution for everything pertaining to DSA preparation and programming foundations in general, saving candidates from having to visit many sources in order to receive structured content.
Additionally, we believe that learning to code entails much more than only "cracking the coding interview." The long-term goal of this channel is to create more proficient problem-solvers in this field so that, in the end, we can create fantastic products and be able to resolve challenging issues in our environment to improve the quality of life for everyone.

#matrixdiagonalsum #codewitheasebyvarsha #datastructures #codinginterviewprep