Given a function past_records() that will report blood sugar level of two twin brothers some random number of days ago. For example, one call to past_records() may give [77 78]. Another call to past_records() may give [60 48]. Your crystal_ball should create a function second(first) that will predict blood sugar of second brother from blood sugar level of first brother, (within +/-1).
Hint: assume a crystal_ball exists here.
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Simple date to serial no. conversion
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167 Solvers
Solution 1556824
Really like your generic approach to solving this problem. In my case, I was misled by the test suite to provide a solution that works only for integral values.