LeetCode #207: Course Schedule
https://leetcode.com/problems/course-schedule/description/ To solve this problem, we can build an adjacency list from the given edge list. Then, we can use…
Category: LeetCode Solutions
Step by step guide to LeetCode solutions.
LeetCode #417: Pacific Atlantic Water Flow
https://leetcode.com/problems/pacific-atlantic-water-flow/ This problem asks us to find the cells of a matrix where water can flow from Pacific Ocean to…
LeetCode #133: Clone Graph
https://leetcode.com/problems/clone-graph/description/ The problem asks us to make a deep copy of a given undirected graph. We are given a node…
LeetCode #200: Number of Islands
https://leetcode.com/problems/number-of-islands/description/ Number of Islands is a classic graph theory problem in which we are given a 2D grid with 1s…
LeetCode #79: Word Search
https://leetcode.com/problems/word-search/description/ In the Word Search problem, we are given a 2D grid of characters and a word to search for.…
LeetCode #39: Combination Sum
https://leetcode.com/problems/combination-sum/ Combination Sum is a problem in which we need to find all the unique combinations of numbers from a…
LeetCode #295: Find Median from Data Stream
https://leetcode.com/problems/find-median-from-data-stream/description/ The problem asks us to find the median of a stream of integers as they are being added. We…
LeetCode #212: Word Search II
https://leetcode.com/problems/word-search-ii/ The problem asks us to find all the words from a given list that can be constructed from the…
LeetCode #211: Design Add and Search Words Data Structure
https://leetcode.com/problems/design-add-and-search-words-data-structure/ The “Design Add and Search Words Data Structure” problem on LeetCode asks us to implement a data structure that…
LeetCode #208: Implement Trie (Prefix Tree)
https://leetcode.com/problems/implement-trie-prefix-tree/ The problem requires implementing a Trie data structure, also known as a Prefix Tree, which allows for efficient insertion,…