Question
Given an integer array nums, a window size k (1 <= k <= length), and an integer m, count how many windows of k consecutive elements contain at least m distinct values. Maintain a value-count map and a running distinct counter as the window slides; do not rebuild a set per window. Example: nums = [1, 1, 1, 2, 1], k = 3, m = 2 gives 2 — windows [1,1,2] and [1,2,1] qualify, [1,1,1] does not.
count_varied_windows(nums: list[int], k: int, m: int) → int[[1,1,1,2,1],3,2]out2State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.
Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.