What went well
- 0:00 submission for A!
- Got ABCD (albeit slowly).
What went poorly
- Incurred one wrong answer for B and C each (and took a long time too).
- Took half an hour to recognize the recursion for the tree structure in D.
- Thought that the residues of numbers compare the same way as the the numbers themselves (i.e. a > b implies (a % m) > (b % m)…no, just no).
Where I got lucky
- Got D with 9 minutes to go, which involved a slight wild guess.
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