Status: IN
`min_operations` (recolors) updates the window count in O(1) per step by adding the incoming element and removing the outgoing one, using Python's `bool`-to-`int` coercion (`True == 1`, `False == 0`) in a single arithmetic expression.
Source: entries/2026/06/06/minimum-recolors-to-get-k-consecutive-black-blocks-solution.md