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PayPal LeetCode Questions 2026

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

Last updated: 20 Feb 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Two Sum	EASY	75%	ArrayHash Table
Longest Substring Without Repeating Characters	MEDIUM	62.5%	Hash TableStringSliding Window
Median of Two Sorted Arrays	HARD	37.5%	ArrayBinary SearchDivide and Conquer
Zigzag Conversion	MEDIUM	100%	String
Container With Most Water	MEDIUM	50%	ArrayTwo PointersGreedy
3Sum	MEDIUM	50%	ArrayTwo PointersSorting
Valid Parentheses	EASY	50%	StringStack
Search in Rotated Sorted Array	MEDIUM	50%	ArrayBinary Search
Find First and Last Position of Element in Sorted Array	MEDIUM	50%	ArrayBinary Search
Trapping Rain Water	HARD	37.5%	ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
Group Anagrams	MEDIUM	75%	ArrayHash TableStringSorting
Minimum Non-Zero Product of the Array Elements	MEDIUM	75%	MathGreedyRecursion
Merge Intervals	MEDIUM	75%	ArraySorting
Sort Colors	MEDIUM	50%	ArrayTwo PointersSorting
Word Search	MEDIUM	75%	ArrayStringBacktrackingDepth-First SearchMatrix
Merge Sorted Array	EASY	50%	ArrayTwo PointersSorting
Smallest Greater Multiple Made of Two Digits	MEDIUM	75%	MathEnumeration
Number of Valid Move Combinations On Chessboard	HARD	75%	ArrayStringBacktrackingSimulation
Best Time to Buy and Sell Stock	EASY	62.5%	ArrayDynamic Programming
Count Vowel Substrings of a String	EASY	62.5%	Hash TableString

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