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Arcesium LeetCode Questions 2026

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

Last updated: 20 Feb 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Cycle Length Queries in a Tree	HARD	100%	ArrayTreeBinary Tree
Maximize the Confusion of an Exam	MEDIUM	100%	StringBinary SearchSliding WindowPrefix Sum
Maximum Length of Subarray With Positive Product	MEDIUM	100%	ArrayDynamic ProgrammingGreedy
House Robber	MEDIUM	62.5%	ArrayDynamic Programming
Count Collisions on a Road	MEDIUM	100%	StringStackSimulation
Number of People Aware of a Secret	MEDIUM	100%	Dynamic ProgrammingQueueSimulation
Partition Array Into Two Arrays to Minimize Sum Difference	HARD	100%	ArrayTwo PointersBinary SearchDynamic ProgrammingBit ManipulationSortingOrdered SetBitmask
Edit Distance	MEDIUM	62.5%	StringDynamic Programming
Find the Count of Monotonic Pairs I	HARD	62.5%	ArrayMathDynamic ProgrammingCombinatoricsPrefix Sum
Next Permutation	MEDIUM	62.5%	ArrayTwo Pointers
Minimum Swaps to Group All 1's Together II	MEDIUM	62.5%	ArraySliding Window
Maximal Rectangle	HARD	62.5%	ArrayDynamic ProgrammingStackMatrixMonotonic Stack
House Robber IV	MEDIUM	87.5%	ArrayBinary SearchDynamic ProgrammingGreedy
Trapping Rain Water	HARD	62.5%	ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
Median of Two Sorted Arrays	HARD	62.5%	ArrayBinary SearchDivide and Conquer
Word Ladder	HARD	62.5%	Hash TableStringBreadth-First Search
Longest Substring Without Repeating Characters	MEDIUM	62.5%	Hash TableStringSliding Window

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