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Re:Ask HN: What is the best to prepare for competitive progr... by RedGreenCode on Friday December 27, 2019 @11:05PM (#21897014)
This looks like a duplicate of https://news.ycombinator.com/item?id=21892189. I answered there.
Re:Ask HN: What is the best to prepare for competitive progr... by cjbprime on Friday December 27, 2019 @05:25PM (#21895284)
There are plenty of YouTube videos of people solving Code Jam problems while talking about what they're doing -- I'd probably start with those.