Problem 1158. Sum the elements in either diagonal of a square matrix

Created by Tom Holz

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Sum the elements of a square matrix that lie on either the major diagonal or anti-diagonal. (Include all elements that are part of either of the diagonals).

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505 Solutions
174 Solvers

Last Solution submitted on Jun 22, 2020

Last 200 Solutions

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3 Comments

3 Comments

Gareth Lee on 1 May 2015

the description of your problem is wrong, not the same as test suits. the either..or... should be both...and...

Tom Holz on 31 May 2017

I updated the description to clarify the ambiguity mentioned by Gareth Lee on 1 May 2015.

Tom Holz on 31 May 2017

With apologies for the 2 year delay, I've updated the description to be a little more explicit.

Solution Comments

Solution 303032

1 Comment

1 Comment

Tom Holz on 30 Dec 2013

I hadn't seen this approach to masking the complexity of a solution before. Obvious in hindsight of course.

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Problem 1158. Sum the elements in either diagonal of a square matrix

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Last 200 Solutions

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Problem 1158. Sum the elements in either diagonal of a square matrix

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Last 200 Solutions

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Solution Comments

Problem Recent Solvers174

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