Epam Systems vs Qualcomm Interview Questions
Epam Systems lists 46 LeetCode interview questions while Qualcomm lists 62. They share 21 problems — 46% of Epam Systems's bank and 34% of Qualcomm's. Focus on the overlap first, then drill into 25 Epam Systems-only and 41 Qualcomm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 21 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Epam Systems and Qualcomm.
Step 2 — Company-specific depth: Add Epam Systems-specific problems like Minimum Operations to Make a Uni-Value Grid, Longest Palindromic Substring, Valid Anagram and Qualcomm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Qualcomm skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
21 Shared Questions
High-priority problems to practice for both Epam Systems and Qualcomm.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Valid Parentheses | Easy |
| Move Zeroes | Easy |
| Longest Common Prefix | Easy |
| Merge Sorted Array | Easy |
| Reverse String | Easy |
| Trapping Rain Water | Hard |
| 3Sum | Medium |
| Merge Intervals | Medium |
| Generate Parentheses | Medium |
| LRU Cache | Medium |
| Palindrome Number | Easy |
| Reverse Integer | Medium |
| Pow(x, n) | Medium |
| Unique Paths | Medium |
| Edit Distance | Medium |
| Reverse Linked List | Easy |
| Kth Largest Element in an Array | Medium |
| Median of Two Sorted Arrays | Hard |
| Merge Two Sorted Lists | Easy |
Unique to Epam Systems (25)
Problems in Epam Systems's list that do not appear at Qualcomm.
| Problem | Difficulty |
|---|---|
| Minimum Operations to Make a Uni-Value Grid | Medium |
| Longest Palindromic Substring | Medium |
| Valid Anagram | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| Rotate Array | Medium |
| House Robber | Medium |
| Partition Equal Subset Sum | Medium |
| Longest Consecutive Sequence | Medium |
| String Compression | Medium |
| Reverse Vowels of a String | Easy |
| First Unique Character in a String | Easy |
Unique to Qualcomm (41)
Problems in Qualcomm's list that do not appear at Epam Systems.
| Problem | Difficulty |
|---|---|
| String Compression III | Medium |
| Maximum Number of Ones | Hard |
| Reverse Nodes in k-Group | Hard |
| Number of Islands | Medium |
| Remove Nth Node From End of List | Medium |
| Reverse Bits | Easy |
| Rotate Image | Medium |
| Power of Two | Easy |
| Rectangle Overlap | Easy |
| Linked List Cycle | Easy |
| Middle of the Linked List | Easy |
| Design Circular Queue | Medium |
Frequently Asked Questions
How many LeetCode questions do Epam Systems and Qualcomm share?
Epam Systems and Qualcomm share 21 LeetCode interview questions. 25 problems appear only in Epam Systems's list and 41 appear only in Qualcomm's list.
What topics overlap most between Epam Systems and Qualcomm?
The most common shared topics between Epam Systems and Qualcomm are Array (9 shared questions), String (6 shared questions), Two Pointers (5 shared questions), Sorting (4 shared questions), Dynamic Programming (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Epam Systems or Qualcomm?
Epam Systems has 16 Easy, 27 Medium, and 3 Hard questions. Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. Qualcomm has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Epam Systems and Qualcomm?
Start with the 21 shared problems since they cover what both companies ask most often. Then add 20 Epam Systems-specific and 20 Qualcomm-specific questions to round out your prep.