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Results tagged with puzzle
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user 26349
Recreational mathematics or puzzles with serious mathematical content. Note that math contest problems are generally considered off-topic.
19
votes
Puzzle on deleting k bits from binary vectors of length 3k
This is not an answer but rather a long comment. I give an informal argument that suggests what the right answer should be. The proof of the lower bound is rigorous, the proof of the upper bound is no …
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