MongoDB

14 questions tracked12 with solutions

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Frequency scoreSorted highest → lowest frequency✓ Our Solution = we have a detailed walkthrough

Showing 14 of 14 questions

100

ArrayHash TableStringDynamic Programming+2

MediumWeb Crawler Multithreaded

Depth-First SearchBreadth-First SearchConcurrency

EasyIntersection of Two Arrays✓ Our Solution

ArrayHash TableTwo PointersBinary Search+1

MediumInsert Interval✓ Our Solution

Array

EasyMerge Two Binary Trees✓ Our Solution

TreeDepth-First SearchBreadth-First SearchBinary Tree

MediumStock Price Fluctuation✓ Our Solution

Hash TableDesignHeap (Priority Queue)Data Stream+1

HardText Justification✓ Our Solution

ArrayStringSimulation

Hash TableLinked ListDesignDoubly-Linked List

HardMerge k Sorted Lists✓ Our Solution

Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort

MediumValid Sudoku✓ Our Solution

ArrayHash TableMatrix

MediumSearch in Rotated Sorted Array✓ Our Solution

ArrayBinary Search

MediumDesign Hit Counter

ArrayBinary SearchDesignQueue+1

HardSliding Window Maximum✓ Our Solution

ArrayQueueSliding WindowHeap (Priority Queue)+1

MediumLowest Common Ancestor of a Binary Tree✓ Our Solution

TreeDepth-First SearchBinary Tree