#3751

Total Waviness of Numbers in Range I

pupil · 445 · lc medium +26 · 80.6% accepted · 46 likes · top 92%

Description

Given integers num1 and num2, return the total waviness summed over all integers in [num1, num2], where a number's waviness counts interior digits that are strictly greater than both neighbors (peaks) or strictly less than both neighbors (valleys).

Code

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