1. Design Twitter\n2. Design a parking lot for small, medium, and large cars with a vallet parking system\n3. Unique Paths:https://leetcode.com/problems/unique-paths/ then a variation of https://leetcode.com/problems/shortest-path-to-get-food/\n4. Find Median: https://leetcode.com/problems/find-median-from-data-stream/ then a variation of https://leetcode.com/problems/merge-k-sorted-lists/\n\n

Design Twitter\n2. Design a parking lot for small, medium, and large cars with a vallet parking system\n3. Unique Paths:https://leetcode.com/problems/unique-pat