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Mongodb LeetCode Questions 2026

Browse LeetCode problems frequently asked by Mongodb. Filter by difficulty and timeframe to focus your interview prep.

Last updated: 10 July 2026

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ProblemDifficultyFrequencyTopics
Insert IntervalMEDIUM
75%
Array
Web Crawler MultithreadedMEDIUM
75%
Depth-First SearchBreadth-First SearchConcurrency
Merge Two Binary TreesEASY
62.5%
TreeDepth-First SearchBreadth-First SearchBinary Tree
Search in Rotated Sorted ArrayMEDIUM
62.5%
ArrayBinary Search
Word BreakMEDIUM
100%
ArrayHash TableStringDynamic ProgrammingTrieMemoization
Stock Price FluctuationMEDIUM
75%
Hash TableDesignHeap (Priority Queue)Data StreamOrdered Set
Merge k Sorted ListsHARD
87.5%
Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort
Sliding Window MaximumHARD
62.5%
ArrayQueueSliding WindowHeap (Priority Queue)Monotonic Queue
Text JustificationHARD
87.5%
ArrayStringSimulation
Intersection of Two ArraysEASY
100%
ArrayHash TableTwo PointersBinary SearchSorting
Lowest Common Ancestor of a Binary TreeMEDIUM
62.5%
TreeDepth-First SearchBinary Tree
Convert JSON String to ObjectHARD
75%
Implement Trie (Prefix Tree)MEDIUM
100%
Hash TableStringDesignTrie
Design Search Autocomplete SystemHARD
62.5%
StringDepth-First SearchDesignTrieSortingHeap (Priority Queue)Data Stream
Snapshot ArrayMEDIUM
100%
ArrayHash TableBinary SearchDesign
Course Schedule IIMEDIUM
75%
Depth-First SearchBreadth-First SearchGraph TheoryTopological Sort
Lowest Common Ancestor of a Binary Tree IIIMEDIUM
62.5%
Hash TableTwo PointersTreeBinary Tree
String CompressionMEDIUM
62.5%
Two PointersString
Word Break IIHARD
62.5%
ArrayHash TableStringDynamic ProgrammingBacktrackingTrieMemoization
LRU CacheMEDIUM
75%
Hash TableLinked ListDesignDoubly-Linked List

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