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Find the Kth positive even number, where 0th is 0, 1st is 2, etc. Do this recursively, think how can you express the Kth even number in terms of a smaller even number? This is very obviously 2*k, but the goal is to do it recursively! kthEven(0) → 0 kthEven(1) → 2 kthEven(2) → 4 ...Save, Compile, Run (ctrl-enter) |
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