Qualcomm vs Samsung Interview Questions
Qualcomm lists 62 LeetCode interview questions while Samsung lists 65. They share 17 problems — 27% of Qualcomm's bank and 26% of Samsung's. Focus on the overlap first, then drill into 45 Qualcomm-only and 48 Samsung-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 17 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Qualcomm and Samsung.
Step 2 — Company-specific depth: Add Qualcomm-specific problems like String Compression III, Maximum Number of Ones, Reverse Nodes in k-Group and Samsung-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Samsung skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
17 Shared Questions
High-priority problems to practice for both Qualcomm and Samsung.
| Problem | Difficulty |
|---|---|
| Number of Islands | Medium |
| LRU Cache | Medium |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| 3Sum | Medium |
| Rotate Image | Medium |
| Move Zeroes | Easy |
| Trapping Rain Water | Hard |
| Merge Intervals | Medium |
| Trapping Rain Water II | Hard |
| Permutations | Medium |
| Merge Sorted Array | Easy |
| Median of Two Sorted Arrays | Hard |
| Edit Distance | Medium |
| Generate Parentheses | Medium |
| Merge k Sorted Lists | Hard |
| Longest Common Prefix | Easy |
Unique to Qualcomm (45)
Problems in Qualcomm's list that do not appear at Samsung.
| Problem | Difficulty |
|---|---|
| String Compression III | Medium |
| Maximum Number of Ones | Hard |
| Reverse Nodes in k-Group | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Reverse Linked List | Easy |
| Palindrome Number | Easy |
| Remove Nth Node From End of List | Medium |
| Reverse Bits | Easy |
| Power of Two | Easy |
| Rectangle Overlap | Easy |
| Linked List Cycle | Easy |
| Reverse String | Easy |
Unique to Samsung (48)
Problems in Samsung's list that do not appear at Qualcomm.
Frequently Asked Questions
How many LeetCode questions do Qualcomm and Samsung share?
Qualcomm and Samsung share 17 LeetCode interview questions. 45 problems appear only in Qualcomm's list and 48 appear only in Samsung's list.
What topics overlap most between Qualcomm and Samsung?
The most common shared topics between Qualcomm and Samsung are Array (12 shared questions), String (4 shared questions), Two Pointers (4 shared questions), Matrix (3 shared questions), Sorting (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Qualcomm or Samsung?
Qualcomm has 28 Easy, 25 Medium, and 9 Hard questions. Samsung has 12 Easy, 36 Medium, and 17 Hard questions. Samsung has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Qualcomm and Samsung?
Start with the 17 shared problems since they cover what both companies ask most often. Then add 20 Qualcomm-specific and 20 Samsung-specific questions to round out your prep.