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Salesforce LeetCode Questions 2026

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

Last updated: 20 Feb 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Longest Substring Without Repeating Characters	MEDIUM	62.5%	Hash TableStringSliding Window
Longest Palindromic Substring	MEDIUM	50%	Two PointersStringDynamic Programming
Container With Most Water	MEDIUM	50%	ArrayTwo PointersGreedy
Integer to Roman	MEDIUM	50%	Hash TableMathString
Roman to Integer	EASY	37.5%	Hash TableMathString
3Sum	MEDIUM	37.5%	ArrayTwo PointersSorting
Valid Parentheses	EASY	37.5%	StringStack
Merge k Sorted Lists	HARD	37.5%	Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort
Search in Rotated Sorted Array	MEDIUM	37.5%	ArrayBinary Search
Combination Sum	MEDIUM	25%	ArrayBacktracking
First Missing Positive	HARD	37.5%	ArrayHash Table
Trapping Rain Water	HARD	50%	ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
Group Anagrams	MEDIUM	62.5%	ArrayHash TableStringSorting
Pow(x, n)	MEDIUM	25%	MathRecursion
N-Queens	HARD	25%	ArrayBacktracking
Merge Intervals	MEDIUM	62.5%	ArraySorting
Sort Colors	MEDIUM	37.5%	ArrayTwo PointersSorting
Minimum Window Substring	HARD	50%	Hash TableStringSliding Window
Validate Binary Search Tree	MEDIUM	50%	TreeDepth-First SearchBinary Search TreeBinary Tree
Distinct Subsequences	HARD	62.5%	StringDynamic Programming

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