[LeetCode] K Empty Slots

683. K Empty Slots You have n bulbs in a row numbered from 1 to n. Initially, all the bulbs are turned off. We turn on exactly one bulb every day until all bulbs are on after n days. You are given an array bulbs of length n where bulbs[i] = x means that on the (i+1)th day, we will turn on the bulb at position x where i is 0-indexed and x is 1-indexed. Given an integer k, return the minimum day number such that there exists two turned on bulbs that have exactly k bulbs between them that are all ...

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