Siemens vs Yandex Interview Questions
Siemens lists 25 LeetCode interview questions while Yandex lists 128. They share 13 problems — 52% of Siemens's bank and 10% of Yandex's. Focus on the overlap first, then drill into 12 Siemens-only and 115 Yandex-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 13 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Siemens and Yandex.
Step 2 — Company-specific depth: Add Siemens-specific problems like Minimized Maximum of Products Distributed to Any Store, Peaks in Array, The Skyline Problem and Yandex-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Siemens skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
13 Shared Questions
High-priority problems to practice for both Siemens and Yandex.
| Problem | Difficulty |
|---|---|
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Valid Parentheses | Easy |
| Merge Two Sorted Lists | Easy |
| LRU Cache | Medium |
| Two Sum | Easy |
| Valid Anagram | Easy |
| Remove Duplicates from Sorted Array | Easy |
| Group Anagrams | Medium |
| Longest Palindromic Substring | Medium |
| Palindrome Number | Easy |
| Top K Frequent Elements | Medium |
| Best Time to Buy and Sell Stock | Easy |
Unique to Siemens (12)
Problems in Siemens's list that do not appear at Yandex.
| Problem | Difficulty |
|---|---|
| Minimized Maximum of Products Distributed to Any Store | Medium |
| Peaks in Array | Hard |
| The Skyline Problem | Hard |
| First Missing Positive | Hard |
| Maximum Product of Three Numbers | Easy |
| Minimum Add to Make Parentheses Valid | Medium |
| Maximum Product Subarray | Medium |
| Angle Between Hands of a Clock | Medium |
| Single Number III | Medium |
| Rotate Array | Medium |
| Clone Graph | Medium |
| Strong Password Checker | Hard |
Unique to Yandex (115)
Problems in Yandex's list that do not appear at Siemens.
| Problem | Difficulty |
|---|---|
| Longest Subarray of 1's After Deleting One Element | Medium |
| Summary Ranges | Easy |
| Maximize Distance to Closest Person | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Find K Closest Elements | Medium |
| Subarray Sum Equals K | Medium |
| String Compression | Medium |
| Valid Palindrome II | Easy |
| Move Zeroes | Easy |
| One Edit Distance | Medium |
| Permutation in String | Medium |
| Isomorphic Strings | Easy |
Frequently Asked Questions
How many LeetCode questions do Siemens and Yandex share?
Siemens and Yandex share 13 LeetCode interview questions. 12 problems appear only in Siemens's list and 115 appear only in Yandex's list.
What topics overlap most between Siemens and Yandex?
The most common shared topics between Siemens and Yandex are Array (7 shared questions), Hash Table (5 shared questions), Sorting (4 shared questions), String (4 shared questions), Linked List (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Siemens or Yandex?
Siemens has 8 Easy, 13 Medium, and 4 Hard questions. Yandex has 51 Easy, 67 Medium, and 10 Hard questions. Siemens has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Siemens and Yandex?
Start with the 13 shared problems since they cover what both companies ask most often. Then add 12 Siemens-specific and 20 Yandex-specific questions to round out your prep.