QUESTIONS BY COMPANY

Zscaler LeetCode Questions 2026

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

Last updated: 10 July 2026

Try CodingInterviewAI free on a practice problem

New accounts get 10 free credits for the free AI model—up to five complete problems.

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Robot Bounded In Circle	MEDIUM	62.5%	MathStringSimulation
Maximum Strong Pair XOR I	EASY	100%	ArrayHash TableBit ManipulationTrieSliding Window
Maximum Strong Pair XOR II	HARD	100%	ArrayHash TableBit ManipulationTrieSliding Window
Day of the Year	EASY	100%	MathString
Apply Operations to Make Sum of Array Greater Than or Equal to k	MEDIUM	100%	MathGreedyEnumeration
Largest Number After Digit Swaps by Parity	EASY	100%	SortingHeap (Priority Queue)
Optimal Account Balancing	HARD	87.5%	ArrayDynamic ProgrammingBacktrackingBit ManipulationBitmask
Number of Divisible Triplet Sums	MEDIUM	62.5%	ArrayHash Table
Minimum Increment to Make Array Unique	MEDIUM	75%	ArrayGreedySortingCounting
Word Ladder	HARD	62.5%	Hash TableStringBreadth-First Search
Minimum Replacements to Sort the Array	HARD	87.5%	ArrayMathGreedy
Set Matrix Zeroes	MEDIUM	62.5%	ArrayHash TableMatrix
LRU Cache	MEDIUM	75%	Hash TableLinked ListDesignDoubly-Linked List
Integer to English Words	HARD	62.5%	MathStringRecursion
Reverse Nodes in k-Group	HARD	62.5%	Linked ListRecursion

Find algorithm patterns and generate explained solutions.