QUESTIONS BY COMPANY

Deloitte LeetCode Questions 2026

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

Last updated: 20 May 2026

ProblemDifficultyFrequencyTopics
Two SumEASY
100%
ArrayHash Table
Palindrome NumberEASY
62.5%
Math
Valid ParenthesesEASY
75%
StringStack
Best Time to Buy and Sell StockEASY
75%
ArrayDynamic Programming
Change Null Values in a Table to the Previous ValueMEDIUM
87.5%
Database
Managers with at Least 5 Direct ReportsMEDIUM
62.5%
Database
Longest Palindromic SubstringMEDIUM
75%
Two PointersStringDynamic Programming
Longest Common PrefixEASY
62.5%
ArrayStringTrie
Merge k Sorted ListsHARD
100%
Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort
Second Highest SalaryMEDIUM
75%
Database
Edit DistanceMEDIUM
50%
StringDynamic Programming
Minimum Time to Repair CarsMEDIUM
50%
ArrayBinary Search
Coin ChangeMEDIUM
50%
ArrayDynamic ProgrammingBreadth-First Search
Rising TemperatureEASY
50%
Database
Container With Most WaterMEDIUM
62.5%
ArrayTwo PointersGreedy
Max Consecutive OnesEASY
50%
Array
Kth Largest Element in an ArrayMEDIUM
50%
ArrayDivide and ConquerSortingHeap (Priority Queue)Quickselect
Merge IntervalsMEDIUM
62.5%
ArraySorting
Longest Substring Without Repeating CharactersMEDIUM
75%
Hash TableStringSliding Window
Maximum SubarrayMEDIUM
62.5%
ArrayDivide and ConquerDynamic Programming

Need Help Solving These Problems?

CodingInterviewAI can instantly identify algorithms and generate optimal solutions for any LeetCode problem. Get step-by-step explanations and ace your next technical interview.

See How It Works