You're managing a power grid and need to schedule maintenance. Determine the minimum number of maintenance periods required to ensure no two adjacent power lines are down simultaneously.

Find the minimum number of operations to reduce a given positive integer to 0. You can either subtract a power of 2 or add a power of 2 in each operation.

Compress a given string by replacing consecutive repeating characters with the character followed by the count of repetitions. If the compressed string isn't shorter, return the original.