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Oracle

299 problems · 170 with a MIK video · 14 asked in the last 6 months

D · DSA 167Q · SQL & DBMS 3

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TopicPatternDifficultyStatusSortLast 6 monthsOnly with MIK video

299 problems, most frequent first

DoneLC #ProblemLevelHow often askedMIK video

146LRU CacheDesign Data Structures · Asked in the last 6 monthsMedium100▶ Watch

3Longest Substring Without Repeating Characters ↗Medium85Not covered yet

200Number of IslandsArrays · Asked in the last 6 monthsMedium84▶ Watch

1Two SumArrays · Asked in the last 6 monthsEasy82▶ Watch

49Group AnagramsArrays · Asked in the last 6 monthsMedium82▶ Watch

347Top K Frequent ElementsHeap / Priority QueueMedium76▶ Watch

23Merge k Sorted ListsHeap / Priority QueueHard74▶ Watch

239Sliding Window MaximumSliding WindowHard74▶ Watch

20Valid ParenthesesStackEasy73▶ Watch

56Merge Intervals ↗Medium70Not covered yet

54Spiral MatrixArraysMedium69▶ Watch

33Search in Rotated Sorted ArrayBinary Search · Asked in the last 6 monthsMedium68▶ Watch

460LFU CacheDesign Data StructuresHard66▶ Watch

253Meeting Rooms IIPrefix Sum & Difference Array · LeetCode PremiumMedium66▶ Watch

206Reverse Linked ListLinked ListEasy64▶ Watch

5Longest Palindromic SubstringDynamic ProgrammingMedium64▶ Watch

1209Remove All Adjacent Duplicates in String II ↗Medium64Not covered yet

11Container With Most WaterArraysMedium62▶ Watch

53Maximum Subarray ↗Medium62Not covered yet

155Min Stack ↗Medium62Not covered yet

1200Minimum Absolute Difference ↗Easy62Not covered yet

735Asteroid CollisionStackMedium62▶ Watch

3438Find Valid Pair of Adjacent Digits in String ↗Easy60Not covered yet

42Trapping Rain WaterArraysHard60▶ Watch

153SumArraysMedium60▶ Watch

1797Design Authentication Manager ↗Medium58Not covered yet

13Roman to Integer ↗Easy58Not covered yet

242Valid AnagramStringsEasy58▶ Watch

199Binary Tree Right Side ViewTrees · Asked in the last 6 monthsMedium58▶ Watch

394Decode String ↗Medium58Not covered yet

875Koko Eating BananasBinary SearchMedium58▶ Watch

295Find Median from Data StreamHeap / Priority QueueHard58▶ Watch

128Longest Consecutive Sequence ↗Medium58Not covered yet

22Generate ParenthesesRecursionMedium58▶ Watch

75Sort ColorsArraysMedium56▶ Watch

3799Word Squares II ↗Medium56Not covered yet

207Course ScheduleGraphsMedium56▶ Watch

2836Maximize Value of Function in a Ball Passing Game ↗Hard56Not covered yet

121Best Time to Buy and Sell Stock ↗Easy56Not covered yet

2506Count Pairs Of Similar Strings ↗Easy56Not covered yet

Source: community data (liquidslr/leetcode-company-wise-problems), updated Aug 16, 2026. Company tags are crowd-reported and may be incomplete.