Epam Systems LeetCode Interview Questions

Practice 49 coding problems currently tagged to Epam Systems. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

16 Easy

30 Medium

3 Hard

Top Topics at Epam Systems

Array String Hash Table Two Pointers Sorting

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Problem	DifficultyDiff	Frequency	Topics	Action
Two Sum 100%	EasyE	100%	Array Hash Table	Solve→
Longest Substring Without Repeating Characters 96.2%	MediumM	96.2%	Hash Table String+1	Solve→
Minimum Operations to Make a Uni-Value Grid 89.2%	MediumM	89.2%	Array Math+2	Solve→
Move Zeroes 89.2%	EasyE	89.2%	Array Two Pointers	Solve→
Longest Palindromic Substring 83.1%	MediumM	83.1%	Two Pointers String+2	Solve→
Merge Sorted Array 83.1%	EasyE	83.1%	Array Two Pointers+1	Solve→
Longest Common Prefix 83.1%	EasyE	83.1%	Array String+1	Solve→
Valid Parentheses 79.3%	EasyE	79.3%	String Stack+1	Solve→
Group Anagrams 79.3%	MediumM	79.3%	Array Hash Table+2	Solve→
Valid Anagram 79.3%	EasyE	79.3%	Hash Table String+1	Solve→
Decode Ways 74.9%	MediumM	74.9%	String Dynamic Programming	Solve→
Best Time to Buy and Sell Stock 69.4%	EasyE	69.4%	Array Dynamic Programming	Solve→
Rotate Array 69.4%	MediumM	69.4%	Array Math+1	Solve→
First Unique Character in a String 69.4%	EasyE	69.4%	Hash Table String+2	Solve→
3Sum 62.5%	MediumM	62.5%	Array Two Pointers+1	Solve→
Trapping Rain Water 62.5%	HardH	62.5%	Array Two Pointers+3	Solve→
Reverse Integer 62.5%	MediumM	62.5%	Math	Solve→
Longest Consecutive Sequence 62.5%	MediumM	62.5%	Array Hash Table+1	Solve→
String Compression 62.5%	MediumM	62.5%	Two Pointers String	Solve→
Reverse String 62.5%	EasyE	62.5%	Two Pointers String	Solve→
Merge Intervals 62.5%	MediumM	62.5%	Array Sorting+1	Solve→
Generate Parentheses 62.5%	MediumM	62.5%	String Dynamic Programming+2	Solve→
Reverse Vowels of a String 62.5%	EasyE	62.5%	Two Pointers String	Solve→
Query Kth Smallest Trimmed Number 62.5%	MediumM	62.5%	Array String+5	Solve→
Max Consecutive Ones III 62.5%	MediumM	62.5%	Array Binary Search+2	Solve→

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Add Two Numbers 52.6%	MediumM	52.6%	Linked List Math+1	Solve→
Palindrome Number 52.6%	EasyE	52.6%	Math	Solve→
House Robber 52.6%	MediumM	52.6%	Array Dynamic Programming	Solve→
Maximum Difference Between Node and Ancestor 52.6%	MediumM	52.6%	Tree Depth-First Search+1	Solve→
Two Sum II - Input Array Is Sorted 52.6%	MediumM	52.6%	Array Two Pointers+1	Solve→
Pow(x, n) 52.6%	MediumM	52.6%	Math Recursion	Solve→
Duplicate Emails 52.6%	EasyE	52.6%	Database	Solve→
Count Salary Categories 52.6%	MediumM	52.6%	Database	Solve→
Multiply Strings 52.6%	MediumM	52.6%	Math String+1	Solve→
Maximum Subarray 52.6%	MediumM	52.6%	Array Divide and Conquer+1	Solve→
Reverse Words in a String 52.6%	MediumM	52.6%	Two Pointers String	Solve→
Unique Paths 52.6%	MediumM	52.6%	Math Dynamic Programming+1	Solve→
Edit Distance 52.6%	MediumM	52.6%	String Dynamic Programming	Solve→
Roman to Integer 52.6%	EasyE	52.6%	Hash Table Math+1	Solve→
Counter 52.6%	EasyE	52.6%		Solve→
Reverse Linked List 52.6%	EasyE	52.6%	Linked List Recursion	Solve→
Sort Characters By Frequency 52.6%	MediumM	52.6%	Hash Table String+4	Solve→
Top K Frequent Elements 52.6%	MediumM	52.6%	Array Hash Table+6	Solve→
Kth Largest Element in an Array 52.6%	MediumM	52.6%	Array Divide and Conquer+3	Solve→
First Missing Positive 52.6%	HardH	52.6%	Array Hash Table	Solve→
Merge Two Sorted Lists 52.6%	EasyE	52.6%	Linked List Recursion	Solve→
LRU Cache 52.6%	MediumM	52.6%	Hash Table Linked List+2	Solve→
Longest Increasing Path in a Matrix 52.6%	HardH	52.6%	Array Dynamic Programming+7	Solve→
Remove K Digits 52.6%	MediumM	52.6%	String Stack+2	Solve→

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

Frequently Asked Questions

What LeetCode problems are tagged to Epam Systems?

Our current Epam Systems practice dataset contains 49 tagged coding problems, including Two Sum, Longest Substring Without Repeating Characters, Minimum Operations to Make a Uni-Value Grid. The difficulty breakdown is 16 Easy, 30 Medium, and 3 Hard problems.

How should I prepare for a Epam Systems coding interview?

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

What is the difficulty level of Epam Systems coding interviews?

Based on our data, Epam Systems interviews include 16 Easy (33%), 30 Medium (61%), and 3 Hard (6%) problems.

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Epam Systems LeetCode Interview Questions

Practice 49 coding problems currently tagged to Epam Systems. Use the frequency and topic signals to build a focused software engineering interview practice plan.

Last updated: September 28, 2026

16 Easy

30 Medium

3 Hard

Top Topics at Epam Systems

Array String Hash Table Two Pointers Sorting

Ace your Epam Systems interview with AI

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

Start Free Trial

Problem	DifficultyDiff	Frequency	Topics	Action
Two Sum 100%	EasyE	100%	Array Hash Table	Solve→
Longest Substring Without Repeating Characters 96.2%	MediumM	96.2%	Hash Table String+1	Solve→
Minimum Operations to Make a Uni-Value Grid 89.2%	MediumM	89.2%	Array Math+2	Solve→
Move Zeroes 89.2%	EasyE	89.2%	Array Two Pointers	Solve→
Longest Palindromic Substring 83.1%	MediumM	83.1%	Two Pointers String+2	Solve→
Merge Sorted Array 83.1%	EasyE	83.1%	Array Two Pointers+1	Solve→
Longest Common Prefix 83.1%	EasyE	83.1%	Array String+1	Solve→
Valid Parentheses 79.3%	EasyE	79.3%	String Stack+1	Solve→
Group Anagrams 79.3%	MediumM	79.3%	Array Hash Table+2	Solve→
Valid Anagram 79.3%	EasyE	79.3%	Hash Table String+1	Solve→
Decode Ways 74.9%	MediumM	74.9%	String Dynamic Programming	Solve→
Best Time to Buy and Sell Stock 69.4%	EasyE	69.4%	Array Dynamic Programming	Solve→
Rotate Array 69.4%	MediumM	69.4%	Array Math+1	Solve→
First Unique Character in a String 69.4%	EasyE	69.4%	Hash Table String+2	Solve→
3Sum 62.5%	MediumM	62.5%	Array Two Pointers+1	Solve→
Trapping Rain Water 62.5%	HardH	62.5%	Array Two Pointers+3	Solve→
Reverse Integer 62.5%	MediumM	62.5%	Math	Solve→
Longest Consecutive Sequence 62.5%	MediumM	62.5%	Array Hash Table+1	Solve→
String Compression 62.5%	MediumM	62.5%	Two Pointers String	Solve→
Reverse String 62.5%	EasyE	62.5%	Two Pointers String	Solve→
Merge Intervals 62.5%	MediumM	62.5%	Array Sorting+1	Solve→
Generate Parentheses 62.5%	MediumM	62.5%	String Dynamic Programming+2	Solve→
Reverse Vowels of a String 62.5%	EasyE	62.5%	Two Pointers String	Solve→
Query Kth Smallest Trimmed Number 62.5%	MediumM	62.5%	Array String+5	Solve→
Max Consecutive Ones III 62.5%	MediumM	62.5%	Array Binary Search+2	Solve→

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Add Two Numbers 52.6%	MediumM	52.6%	Linked List Math+1	Solve→
Palindrome Number 52.6%	EasyE	52.6%	Math	Solve→
House Robber 52.6%	MediumM	52.6%	Array Dynamic Programming	Solve→
Maximum Difference Between Node and Ancestor 52.6%	MediumM	52.6%	Tree Depth-First Search+1	Solve→
Two Sum II - Input Array Is Sorted 52.6%	MediumM	52.6%	Array Two Pointers+1	Solve→
Pow(x, n) 52.6%	MediumM	52.6%	Math Recursion	Solve→
Duplicate Emails 52.6%	EasyE	52.6%	Database	Solve→
Count Salary Categories 52.6%	MediumM	52.6%	Database	Solve→
Multiply Strings 52.6%	MediumM	52.6%	Math String+1	Solve→
Maximum Subarray 52.6%	MediumM	52.6%	Array Divide and Conquer+1	Solve→
Reverse Words in a String 52.6%	MediumM	52.6%	Two Pointers String	Solve→
Unique Paths 52.6%	MediumM	52.6%	Math Dynamic Programming+1	Solve→
Edit Distance 52.6%	MediumM	52.6%	String Dynamic Programming	Solve→
Roman to Integer 52.6%	EasyE	52.6%	Hash Table Math+1	Solve→
Counter 52.6%	EasyE	52.6%		Solve→
Reverse Linked List 52.6%	EasyE	52.6%	Linked List Recursion	Solve→
Sort Characters By Frequency 52.6%	MediumM	52.6%	Hash Table String+4	Solve→
Top K Frequent Elements 52.6%	MediumM	52.6%	Array Hash Table+6	Solve→
Kth Largest Element in an Array 52.6%	MediumM	52.6%	Array Divide and Conquer+3	Solve→
First Missing Positive 52.6%	HardH	52.6%	Array Hash Table	Solve→
Merge Two Sorted Lists 52.6%	EasyE	52.6%	Linked List Recursion	Solve→
LRU Cache 52.6%	MediumM	52.6%	Hash Table Linked List+2	Solve→
Longest Increasing Path in a Matrix 52.6%	HardH	52.6%	Array Dynamic Programming+7	Solve→
Remove K Digits 52.6%	MediumM	52.6%	String Stack+2	Solve→