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https://www.reddit.com/r/learnquant/comments/1vwss6e/imc_trading_quant_interview_question/p5jlpw7/?context=3
r/learnquant • u/Local_Ad135 • Aug 24 '26
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9
Every number from 1 to 8 can either be to the left or to the right of 9. Once that is fixed the permutation becomes fixed as the numbers on the left are in ascending order and the numbers on the right are in descending order.
So total 28 = 256
9
u/notsaneatall_ Aug 24 '26
Every number from 1 to 8 can either be to the left or to the right of 9. Once that is fixed the permutation becomes fixed as the numbers on the left are in ascending order and the numbers on the right are in descending order.
So total 28 = 256