olymmath

BALTIC-WAY 2003 Problem 9

    It is known that nn is a positive integer, n≤144n \leq 144. Ten questions of type "Is nn smaller than a?" are allowed. Answers are given with a delay: The answer to the ii 'th question is given only after the (i+1)(i+1) 'st question is asked, i=1,2,…,9i=1,2, \ldots, 9. The answer to the tenth question is given immediately after it is asked. Find a strategy for identifying nn.

    Dataset text NuminaMath olympiads. Quoted with source.

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