How can I learn from challenges?

Question

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Answer 1

Considering the feature to reveal correct answers has been made available, you may learn from your mistakes through the challenges. It also strengthens your mind math :>

Answer 2

take a screenshot before each round and after that examine the snippets on playground or on your favorite compiler to get some good idea of them.

Answer 3

@Babak Update your Sololearn. Now you can revisit your challenge to see them with correct answer.