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Josh Technology LeetCode Questions 2026

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

Last updated: 20 May 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Remove Zero Sum Consecutive Nodes from Linked List	MEDIUM	62.5%	Hash TableLinked List
Move Zeroes	EASY	87.5%	ArrayTwo Pointers
Merge Nodes in Between Zeros	MEDIUM	62.5%	Linked ListSimulation
Find the Substring With Maximum Cost	MEDIUM	62.5%	ArrayHash TableStringDynamic Programming
Minimum Swaps to Group All 1's Together II	MEDIUM	62.5%	ArraySliding Window
Count Pairs Whose Sum is Less than Target	EASY	62.5%	ArrayTwo PointersBinary SearchSorting
Reverse Nodes in k-Group	HARD	62.5%	Linked ListRecursion
Reverse Odd Levels of Binary Tree	MEDIUM	75%	TreeDepth-First SearchBreadth-First SearchBinary Tree
Find Bottom Left Tree Value	MEDIUM	75%	TreeDepth-First SearchBreadth-First SearchBinary Tree
Maximum Twin Sum of a Linked List	MEDIUM	87.5%	Linked ListTwo PointersStack
Count Good Nodes in Binary Tree	MEDIUM	62.5%	TreeDepth-First SearchBreadth-First SearchBinary Tree
Remove K Digits	MEDIUM	62.5%	StringStackGreedyMonotonic Stack
Largest Number	MEDIUM	100%	ArrayStringGreedySorting
Daily Temperatures	MEDIUM	62.5%	ArrayStackMonotonic Stack
Maximum Difference Between Node and Ancestor	MEDIUM	62.5%	TreeDepth-First SearchBinary Tree
Group Anagrams	MEDIUM	62.5%	ArrayHash TableStringSorting
Invert Binary Tree	EASY	62.5%	TreeDepth-First SearchBreadth-First SearchBinary Tree
Spiral Matrix	MEDIUM	75%	ArrayMatrixSimulation
Reverse Nodes in Even Length Groups	MEDIUM	87.5%	Linked List
Flatten Binary Tree to Linked List	MEDIUM	62.5%	Linked ListStackTreeDepth-First SearchBinary Tree

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