Cisco vs Yandex Interview Questions
Cisco lists 87 LeetCode interview questions while Yandex lists 128. They share 32 problems — 37% of Cisco's bank and 25% of Yandex's. Focus on the overlap first, then drill into 55 Cisco-only and 96 Yandex-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 32 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Cisco and Yandex.
Step 2 — Company-specific depth: Add Cisco-specific problems like House Robber, Predict the Winner, Lucky Numbers in a Matrix and Yandex-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Cisco skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
32 Shared Questions
High-priority problems to practice for both Cisco and Yandex.
| Problem | Difficulty |
|---|---|
| Longest Palindromic Substring | Medium |
| Spiral Matrix | Medium |
| LRU Cache | Medium |
| Merge Intervals | Medium |
| Maximum Subarray | Medium |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Trapping Rain Water | Hard |
| Longest Substring Without Repeating Characters | Medium |
| Linked List Cycle | Easy |
| Merge Sorted Array | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Letter Combinations of a Phone Number | Medium |
| Number of Islands | Medium |
| Move Zeroes | Easy |
| Reverse Linked List | Easy |
| Search a 2D Matrix | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Permutation in String | Medium |
| Add Two Numbers | Medium |
| Group Anagrams | Medium |
| Valid Palindrome | Easy |
| Top K Frequent Elements | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Merge k Sorted Lists | Hard |
| Find Minimum in Rotated Sorted Array | Medium |
| Subarray Sum Equals K | Medium |
| Product of Array Except Self | Medium |
| Maximum Product of Two Elements in an Array | Easy |
| Min Stack | Medium |
Showing top 30 of 32 shared problems.
Unique to Cisco (55)
Problems in Cisco's list that do not appear at Yandex.
| Problem | Difficulty |
|---|---|
| House Robber | Medium |
| Predict the Winner | Medium |
| Lucky Numbers in a Matrix | Easy |
| Rotate Image | Medium |
| Fizz Buzz | Easy |
| Snakes and Ladders | Medium |
| Number of Valid Words in a Sentence | Easy |
| Maximum Difference Between Increasing Elements | Easy |
| Find Third Transaction | Medium |
| Implement Router | Medium |
| Word Search II | Hard |
| Find the Largest Area of Square Inside Two Rectangles | Medium |
Unique to Yandex (96)
Problems in Yandex's list that do not appear at Cisco.
Frequently Asked Questions
How many LeetCode questions do Cisco and Yandex share?
Cisco and Yandex share 32 LeetCode interview questions. 55 problems appear only in Cisco's list and 96 appear only in Yandex's list.
What topics overlap most between Cisco and Yandex?
The most common shared topics between Cisco and Yandex are Array (18 shared questions), Hash Table (10 shared questions), Two Pointers (8 shared questions), String (7 shared questions), Linked List (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Cisco or Yandex?
Cisco has 24 Easy, 50 Medium, and 13 Hard questions. Yandex has 51 Easy, 67 Medium, and 10 Hard questions. Cisco has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Cisco and Yandex?
Start with the 32 shared problems since they cover what both companies ask most often. Then add 20 Cisco-specific and 20 Yandex-specific questions to round out your prep.