HackerRank Problem solving in JavaScript (Diagonal Difference !)

It's time to go with Competitive Coding through one of the best coding platform HackerRank
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[@christosbinos8467]

Out of all the videos I have seen on this topic, this is the best one. It seems many other videos don't really understand, they are simply walking through an answer they found online. What I was missing from this, was how you reference index positions in a matrix. Thanks a lot!

[@servantofallah6734]

Thanks a lot man,