Deloitte LeetCode Interview Questions

Practice 44 coding problems currently tagged to Deloitte. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

17 Easy

24 Medium

3 Hard

Top Topics at Deloitte

Array String Two Pointers Hash Table Dynamic Programming

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Problem	DifficultyDiff	Frequency	Topics	Action
Merge k Sorted Lists 100%	HardH	100%	Linked List Divide and Conquer+3	Solve→
Two Sum 98.6%	EasyE	98.6%	Array Hash Table	Solve→
Change Null Values in a Table to the Previous Value 82.3%	MediumM	82.3%	Database	Solve→
Valid Parentheses 79.2%	EasyE	79.2%	String Stack+1	Solve→
Second Highest Salary 79.2%	MediumM	79.2%	Database	Solve→
Longest Substring Without Repeating Characters 79.2%	MediumM	79.2%	Hash Table String+1	Solve→
Best Time to Buy and Sell Stock 75.6%	EasyE	75.6%	Array Dynamic Programming	Solve→
Longest Palindromic Substring 75.6%	MediumM	75.6%	Two Pointers String+2	Solve→
Palindrome Number 71.3%	EasyE	71.3%	Math	Solve→
Longest Common Prefix 71.3%	EasyE	71.3%	Array String+1	Solve→
Group Anagrams 71.3%	MediumM	71.3%	Array Hash Table+2	Solve→
Managers with at Least 5 Direct Reports 66.1%	MediumM	66.1%	Database	Solve→
Container With Most Water 66.1%	MediumM	66.1%	Array Two Pointers+1	Solve→
Nth Highest Salary 66.1%	MediumM	66.1%	Database	Solve→
Minimum Time to Repair Cars 59.4%	MediumM	59.4%	Array Binary Search	Solve→
Merge Intervals 59.4%	MediumM	59.4%	Array Sorting+1	Solve→
Maximum Subarray 59.4%	MediumM	59.4%	Array Divide and Conquer+1	Solve→
First Unique Character in a String 59.4%	EasyE	59.4%	Hash Table String+2	Solve→
3Sum 59.4%	MediumM	59.4%	Array Two Pointers+1	Solve→
Remove Duplicates from Sorted Array 59.4%	EasyE	59.4%	Array Two Pointers	Solve→
Add Binary 59.4%	EasyE	59.4%	Math String+2	Solve→
Valid Anagram 59.4%	EasyE	59.4%	Hash Table String+1	Solve→
Climbing Stairs 59.4%	EasyE	59.4%	Math Dynamic Programming+1	Solve→
Valid Palindrome 59.4%	EasyE	59.4%	Two Pointers String	Solve→
Edit Distance 50%	MediumM	50%	String Dynamic Programming	Solve→

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Coin Change 50%	MediumM	50%	Array Dynamic Programming+3	Solve→
Rising Temperature 50%	EasyE	50%	Database	Solve→
Max Consecutive Ones 50%	EasyE	50%	Array	Solve→
Kth Largest Element in an Array 50%	MediumM	50%	Array Divide and Conquer+3	Solve→
Customers Who Never Order 50%	EasyE	50%	Database	Solve→
Roman to Integer 50%	EasyE	50%	Hash Table Math+1	Solve→
Reverse Pairs 50%	HardH	50%	Array Binary Search+6	Solve→
Longest Consecutive Sequence 50%	MediumM	50%	Array Hash Table+1	Solve→
Remove K-Balanced Substrings 50%	MediumM	50%	String Stack+1	Solve→
Split Array Largest Sum 50%	HardH	50%	Array Binary Search+3	Solve→
Shortest Unsorted Continuous Subarray 50%	MediumM	50%	Array Two Pointers+4	Solve→
Rotate Array 50%	MediumM	50%	Array Math+1	Solve→
Remove K Digits 50%	MediumM	50%	String Stack+2	Solve→
Remove All Adjacent Duplicates In String 50%	EasyE	50%	String Stack	Solve→
Subarray Sum Equals K 50%	MediumM	50%	Array Hash Table+1	Solve→
Next Permutation 50%	MediumM	50%	Array Two Pointers	Solve→
Reverse Vowels of a String 50%	EasyE	50%	Two Pointers String	Solve→
Super Ugly Number 50%	MediumM	50%	Array Math+1	Solve→
Asteroid Collision 50%	MediumM	50%	Array Stack+1	Solve→

Explore company practice sets with a similar number of tagged coding questions.

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Frequently Asked Questions

What LeetCode problems are tagged to Deloitte?

Our current Deloitte practice dataset contains 44 tagged coding problems, including Merge k Sorted Lists, Two Sum, Change Null Values in a Table to the Previous Value. The difficulty breakdown is 17 Easy, 24 Medium, and 3 Hard problems.

How should I prepare for a Deloitte coding interview?

Focus on the most frequently asked problems first, especially those with high frequency scores. Deloitte interviews typically emphasize Array and String. Practice explaining your thought process while coding.

What is the difficulty level of Deloitte coding interviews?

Based on our data, Deloitte interviews include 17 Easy (39%), 24 Medium (55%), and 3 Hard (7%) problems.

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Deloitte LeetCode Interview Questions

Practice 44 coding problems currently tagged to Deloitte. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

17 Easy

24 Medium

3 Hard

Top Topics at Deloitte

Array String Two Pointers Hash Table Dynamic Programming

Ace your Deloitte interview with AI

Get real-time AI assistance during your actual interview. Invisible to screensharing.

Start Free Trial

Problem	DifficultyDiff	Frequency	Topics	Action
Merge k Sorted Lists 100%	HardH	100%	Linked List Divide and Conquer+3	Solve→
Two Sum 98.6%	EasyE	98.6%	Array Hash Table	Solve→
Change Null Values in a Table to the Previous Value 82.3%	MediumM	82.3%	Database	Solve→
Valid Parentheses 79.2%	EasyE	79.2%	String Stack+1	Solve→
Second Highest Salary 79.2%	MediumM	79.2%	Database	Solve→
Longest Substring Without Repeating Characters 79.2%	MediumM	79.2%	Hash Table String+1	Solve→
Best Time to Buy and Sell Stock 75.6%	EasyE	75.6%	Array Dynamic Programming	Solve→
Longest Palindromic Substring 75.6%	MediumM	75.6%	Two Pointers String+2	Solve→
Palindrome Number 71.3%	EasyE	71.3%	Math	Solve→
Longest Common Prefix 71.3%	EasyE	71.3%	Array String+1	Solve→
Group Anagrams 71.3%	MediumM	71.3%	Array Hash Table+2	Solve→
Managers with at Least 5 Direct Reports 66.1%	MediumM	66.1%	Database	Solve→
Container With Most Water 66.1%	MediumM	66.1%	Array Two Pointers+1	Solve→
Nth Highest Salary 66.1%	MediumM	66.1%	Database	Solve→
Minimum Time to Repair Cars 59.4%	MediumM	59.4%	Array Binary Search	Solve→
Merge Intervals 59.4%	MediumM	59.4%	Array Sorting+1	Solve→
Maximum Subarray 59.4%	MediumM	59.4%	Array Divide and Conquer+1	Solve→
First Unique Character in a String 59.4%	EasyE	59.4%	Hash Table String+2	Solve→
3Sum 59.4%	MediumM	59.4%	Array Two Pointers+1	Solve→
Remove Duplicates from Sorted Array 59.4%	EasyE	59.4%	Array Two Pointers	Solve→
Add Binary 59.4%	EasyE	59.4%	Math String+2	Solve→
Valid Anagram 59.4%	EasyE	59.4%	Hash Table String+1	Solve→
Climbing Stairs 59.4%	EasyE	59.4%	Math Dynamic Programming+1	Solve→
Valid Palindrome 59.4%	EasyE	59.4%	Two Pointers String	Solve→
Edit Distance 50%	MediumM	50%	String Dynamic Programming	Solve→

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Coin Change 50%	MediumM	50%	Array Dynamic Programming+3	Solve→
Rising Temperature 50%	EasyE	50%	Database	Solve→
Max Consecutive Ones 50%	EasyE	50%	Array	Solve→
Kth Largest Element in an Array 50%	MediumM	50%	Array Divide and Conquer+3	Solve→
Customers Who Never Order 50%	EasyE	50%	Database	Solve→
Roman to Integer 50%	EasyE	50%	Hash Table Math+1	Solve→
Reverse Pairs 50%	HardH	50%	Array Binary Search+6	Solve→
Longest Consecutive Sequence 50%	MediumM	50%	Array Hash Table+1	Solve→
Remove K-Balanced Substrings 50%	MediumM	50%	String Stack+1	Solve→
Split Array Largest Sum 50%	HardH	50%	Array Binary Search+3	Solve→
Shortest Unsorted Continuous Subarray 50%	MediumM	50%	Array Two Pointers+4	Solve→
Rotate Array 50%	MediumM	50%	Array Math+1	Solve→
Remove K Digits 50%	MediumM	50%	String Stack+2	Solve→
Remove All Adjacent Duplicates In String 50%	EasyE	50%	String Stack	Solve→
Subarray Sum Equals K 50%	MediumM	50%	Array Hash Table+1	Solve→
Next Permutation 50%	MediumM	50%	Array Two Pointers	Solve→
Reverse Vowels of a String 50%	EasyE	50%	Two Pointers String	Solve→
Super Ugly Number 50%	MediumM	50%	Array Math+1	Solve→
Asteroid Collision 50%	MediumM	50%	Array Stack+1	Solve→