All Problems

4301 problems total

Array (1905)Sorting (440)Depth First Search (316)Database (301)Breadth First Search (241)Tree (240)Stack (172)Graph Theory (169)Linked List (81)Monotonic Stack (67)Queue (50)Recursion (48)Shortest Path (33)
All Topics(4301)Algorithms(3944)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)

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TitleDifficultyVideosCompanies
Earliest Second to Mark Indices Imedium-
Earliest Second to Mark Indices IIhard-
Pizza Toppings Cost Analysismedium-
Find Candidates for Data Scientist Positioneasy-
Maximize Itemshard-
Classifying Triangles by Lengthseasy-
Top Percentile Fraudmedium-
Snaps Analysismedium-
Employees Project Allocationhard-
Friends With No Mutual Friendsmedium-
Find All Unique Email Domainseasy-
User Activities within Time Boundshard-
Calculate Trapping Rain Waterhard-
Winner of the Linked List Gameeasy-
Linked List Frequencyeasy-
Guess the Number Using Bitwise Questions Imedium-
Minimum Operations to Exceed Threshold Value 1easy-
Minimum Operations to Exceed Threshold Value IImedium
Count Pairs of Connectable Servers in a Weighted Tree Networkmedium-
Find the Maximum Sum of Node Valueshard-
Distribute Elements Into Two Arrays Ieasy-
Count Submatrices with Top-Left Element and Sum Less Than kmedium-
Minimum Operations to Write the Letter Y on a Gridmedium-
Distribute Elements Into Two Arrays IIhard-
Maximum Increasing Triplet Valuemedium-
Apple Redistribution into Boxeseasy-
Maximize Happiness of Selected Childrenmedium
Shortest Uncommon Substring in an Arraymedium-
Maximum Strength of K Disjoint Subarrayshard-
Match Alphanumerical Pattern in Matrix Imedium-
Find the Sum of Encrypted Integerseasy-
Mark Elements on Array by Performing Queriesmedium-
Replace Question Marks in String to Minimize Its Valuemedium-
Find the Sum of the Power of All Subsequenceshard-
Existence of a Substring in a String and Its Reverseeasy-
Count Substrings Starting and Ending with Given Charactermedium-
Minimum Deletions to Make String K-Specialmedium-
Minimum Moves to Pick K Oneshard-
Find Trending Hashtagsmedium-
Make String Anti-palindromehard-
Find Bursty Behaviormedium-
Maximum Length Substring With Two Occurrenceseasy-
Apply Operations to Make Sum of Array Greater Than or Equal to kmedium-
Most Frequent IDsmedium-
Longest Common Suffix Querieshard-
Guess the Number Using Bitwise Questions IImedium-
Shortest Subarray With OR at Least K Ieasy-
Minimum Levels to Gain More Pointsmedium-
Shortest Subarray With OR at Least K 2medium-
Find the Sum of Subsequence Powershard-
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