Bulb Switcher
Letcode 319. Bulb Switcher
Letcode 319. Bulb Switcher
Leetcode 654. Maximum Binary Tree
Leetcode 1926. Nearest Exit from Entrance in Maze
Leetcode 1197. Minimum Knight Moves
Leetcode 139: Word Break
Leetcode-1650: Lowest common ancestor III
Leetcode 2181: Merge Nodes in Between Zeros
Leetcode 981. Time Based Key-Value Store
Leetcode 34. Find First and Last Position of Element in Sorted Array
merge two sorted linked lists and return it as a sorted list. The list should be made by splicing together the nodes of the first two lists.