# LeetCode 139. Word Break

Description https://leetcode.com/problems/word-break/description/ Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, determine if s can be segmented into a space-separated sequence of one or…

# LeetCode 104. Maximum Depth of Binary Tree

Description https://leetcode.com/problems/maximum-depth-of-binary-tree/description/ Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the…

# LeetCode 39. Combination Sum

Description https://leetcode.com/problems/combination-sum/description/ Given a set of candidate numbers (C) (without duplicates) and a target number (T), find all unique combinations in C where the candidate numbers…

# LeetCode 155. Min Stack

Description https://leetcode.com/problems/min-stack/description/ Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) —…

# LeetCode 8. String to Integer (atoi)

Description https://leetcode.com/problems/string-to-integer-atoi/ Implement atoi to convert a string to an integer. Hint: Carefully consider all possible input cases. If you…