All Problems

91 problems total

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TitleDifficultyVideosCompanies
Autocomplete Suggestion Systemmedium-
Design log Order recordseasy-
Dodgeball Team Divisionhard-
Two Sumeasy
Regular Expression Matchinghard-
Integer To Romanmedium-
Valid Parentheseseasy
Merge K Sorted Listshard
Permutation of Array using given ordereasy-
Valid Sudokumedium-
Trapping Rain Waterhard-
Multiply Stringsmedium-
Wildcard Matchinghard-
Merge Overlapping Intervalsmedium
Insert Intervalmedium
Kth Permutation Sequence of Numbers 1 to Nhard-
Text Justificationhard-
Minimum Window Substringhard
Largest Rectangle in Histogramhard-
Decode Waysmedium
Symmetric Binary Treeeasy-
Construct Binary Tree from Inorder and Preorder Traversalmedium
Construct Binary Tree from Inorder and Postorder Traversalmedium-
Pascal’s Triangle 1 - Generate first n rowseasy-
Binary Tree Path Sum - Maximum between any two nodeshard
Clone Undirected Graphmedium
Word Break 1 - Check if word is breakablemedium
Word Break 2 - Construct a sentencehard
Design LRU Cachemedium-
Maximum Points on a Linehard-
Friend Words - One Edit Distancemedium-
Majority Element - Boyer–Moore majority vote algorithmeasy-
Largest Number From Given Numbersmedium
Number of Islandsmedium
Happy Numbereasy-
Reverse Linked Listeasy
Implement Triemedium
Course Schedule 2 - Get Ordered Coursesmedium-
Skyline Problemhard-
Lowest Common Ancestor of a Binary Search Treemedium
Sliding Window Maximumhard-
Strobogrammatic Number 2 - Generate for length nmedium-
Flatten 2D Vectormedium-
Paint House 1 - N houses with 3 colors with no two adjacent houses with same color colormedium-
Alien Dictionaryhard-
Encode and Decode Stringsmedium
Find Median from Data Streamhard
Best Meeting Pointhard-
Range Sum Query – Mutablemedium-
Number of Connected Components in an Undirected Graphmedium-
Showing 1 to 50 of 91 results