#3130

Find All Possible Stable Binary Arrays II

international master · 2035 · lc hard +32 · 28.2% accepted · 72 likes · top 6%

Description

Given positive integers zero, one, and limit, count the binary arrays that contain exactly zero zeros and one ones, and in which every subarray longer than limit contains both a 0 and a 1. Return the answer modulo 109 + 7.

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