leetcode

Design

• 146. LRU Cache
• 155. Min Stack
• 341. Flatten Nested List Iterator
• 355. Design Twitter
• 362. Design Hit Counter
• 380. Insert Delete GetRandom O(1)
• 707. Design Linked List
• 933. Number of Recent Calls
• 2241. Design an ATM Machine
• 2349. Design a Number Container System