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Explore the problem of identifying the earliest day when two bulbs turned on have exactly k bulbs off between them. Understand the problem constraints involving permutations and bulb positions. Learn to apply logical reasoning to solve sequence and interval challenges in coding interviews.

Statement

You are given nn bulbs arranged in a row, numbered from 11 to nn. Initially, all bulbs are turned off.

Each day, exactly one bulb is switched on. You are given an array, bulbs of length nn where bulbs[i] =x ...