Algorithm · Two Sigma · Medium
You are given a table named temperature_log holding daily weather records. It has three columns: town (the town the reading belongs to), observed_on (the calendar day of the reading) and temp_c (that day's recorded temperature in degrees Celsius). Every town is measured once per day, with no repeated town-observed_on pairs, and the readings for a town can be listed in day order. Your task is to single out the one town whose temperature moves around the most across the…
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