SOLUTIONS
LEETCODE.

Hard difficulty analysis and solutions.

Problem Difficulty Complexity Date
0458 Poor Pigs Hard T: O(log(buckets) / log(states)), where states = (minutesToTest / minutesToDie) + 1 / S: O(1) Mar 2026
0460 LFU Cache Hard T: O(1) / S: O(N) Mar 2026
3454 Separate Squares II Hard T: O(N log N) / S: O(N) Jan 2026