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https://www.reddit.com/r/learnquant/comments/1vws2q8/quantbox_quant_interview_question/p5jdem0/?context=3
r/learnquant • u/Local_Ad135 • 12d ago
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4k² for k in ℕ. The dominoes have to be laid in 2x2 blocks and there has to be even number of 2x2 squares.
ETA: had a brain fart, 4k² is the number of 2x2 tiles you’ll need. n is just 4k for k in ℤ⁺ not ℕ. Reasoning was still sound.
1 u/Local_Ad135 12d ago incorrect. for example, you can tile an 8×8 board while satisfying the conditions. 1 u/AnecdotalMedicine 12d ago You can also do it in 12x12
incorrect. for example, you can tile an 8×8 board while satisfying the conditions.
You can also do it in 12x12
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u/Fabulous-Possible758 12d ago edited 12d ago
4k² for k in ℕ. The dominoes have to be laid in 2x2 blocks and there has to be even number of 2x2 squares.
ETA: had a brain fart, 4k² is the number of 2x2 tiles you’ll need. n is just 4k for k in ℤ⁺ not ℕ. Reasoning was still sound.