Maximum Length of Semi-Decreasing Subarrays

Given an integer array, return the maximum length of a contiguous subarray that satisfies the problem's "semi-decreasing" property (a relaxed/non-strictly-decreasing condition defined in the prompt). This is typically solved in O(n) by scanning with two pointers or DP, tracking monotonic runs and handling the limited breaks in decreasing order to merge segments and update the longest length.