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EPAM Systems interview questions

The most frequent LeetCode problems tagged to EPAM Systems. This is a data-only page. For process and behavioral prep, use the coding guide and behavioral guide.

Based on 11 distinct problems tagged to EPAM Systems in the last 6 months (2 in the last 30 days, 7 in the last 3 months, 48 all-time) across two open datasets of LeetCode company tags. Tags are user-reported, so treat frequency as a signal, not a promise.

Difficulty mix (last 6 months): Medium 64%, Easy 27%, Hard 9%

Most tagged topics (share of problems): Array 55%, String 55%, Hash Table 36%, Sorting 27%, Sliding Window 18%, Dynamic Programming 18%, Two Pointers 18%, Divide and Conquer 9%, Heap (Priority Queue) 9%, Radix Sort 9%

Watch out: EPAM Systems has thin LeetCode data. Weight the reported questions and the format notes above more than this list.

Most frequent problems

Ranked by frequency, weighted toward the last 30 days. Classics like Two Sum sit near the top of almost every company's list because users tag them everywhere. Solve those fast. The signature list below is more specific to this company.

# Problem Difficulty Last seen Topics
1 Query Kth Smallest Trimmed Number Medium 30 days Array, String, Divide and Conquer, Sorting
2 Max Consecutive Ones III Medium 30 days Array, Binary Search, Sliding Window, Prefix Sum
3 Decode Ways Medium 3 months String, Dynamic Programming
4 Merge Sorted Array Easy 3 months Array, Two Pointers, Sorting
5 Move Zeroes Easy 3 months Array, Two Pointers
6 Longest Increasing Path in a Matrix Hard 3 months Array, Dynamic Programming, Depth-First Search, Breadth-First Search
7 Remove K Digits Medium 3 months String, Stack, Greedy, Monotonic Stack
8 Longest Substring Without Repeating Characters Medium 6 months Hash Table, String, Sliding Window
9 Group Anagrams Medium 6 months Array, Hash Table, String, Sorting
10 LRU Cache Medium 6 months Hash Table, Linked List, Design, Doubly-Linked List
11 First Unique Character in a String Easy 6 months Hash Table, String, Queue, Counting

Signature problems

Problems where EPAM Systems accounts for a large share of all recent tags across companies. These are the most EPAM Systems-specific questions in the data.

# Problem Difficulty Last seen Topics
1 Query Kth Smallest Trimmed Number Medium 30 days Array, String, Divide and Conquer, Sorting
2 Decode Ways Medium 3 months String, Dynamic Programming
3 Remove K Digits Medium 3 months String, Stack, Greedy, Monotonic Stack

Sources

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