Deloitte vs Yandex Interview Questions
Deloitte lists 43 LeetCode interview questions while Yandex lists 128. They share 19 problems — 44% of Deloitte's bank and 15% of Yandex's. Focus on the overlap first, then drill into 24 Deloitte-only and 109 Yandex-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 19 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Deloitte and Yandex.
Step 2 — Company-specific depth: Add Deloitte-specific problems like Change Null Values in a Table to the Previous Value, Second Highest Salary, Longest Common Prefix and Yandex-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Yandex skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
19 Shared Questions
High-priority problems to practice for both Deloitte and Yandex.
| Problem | Difficulty |
|---|---|
| Merge k Sorted Lists | Hard |
| Two Sum | Easy |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Longest Palindromic Substring | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Container With Most Water | Medium |
| Palindrome Number | Easy |
| Valid Palindrome | Easy |
| Add Binary | Easy |
| Merge Intervals | Medium |
| First Unique Character in a String | Easy |
| Maximum Subarray | Medium |
| Remove Duplicates from Sorted Array | Easy |
| Group Anagrams | Medium |
| Coin Change | Medium |
| Max Consecutive Ones | Easy |
| Valid Anagram | Easy |
| Subarray Sum Equals K | Medium |
Unique to Deloitte (24)
Problems in Deloitte's list that do not appear at Yandex.
| Problem | Difficulty |
|---|---|
| Change Null Values in a Table to the Previous Value | Medium |
| Second Highest Salary | Medium |
| Longest Common Prefix | Easy |
| Climbing Stairs | Easy |
| Managers with at Least 5 Direct Reports | Medium |
| Minimum Time to Repair Cars | Medium |
| 3Sum | Medium |
| Nth Highest Salary | Medium |
| Remove K Digits | Medium |
| Rising Temperature | Easy |
| Reverse Pairs | Hard |
| Edit Distance | Medium |
Unique to Yandex (109)
Problems in Yandex's list that do not appear at Deloitte.
| Problem | Difficulty |
|---|---|
| Longest Subarray of 1's After Deleting One Element | Medium |
| Summary Ranges | Easy |
| Maximize Distance to Closest Person | Medium |
| Find K Closest Elements | Medium |
| String Compression | Medium |
| Valid Palindrome II | Easy |
| Move Zeroes | Easy |
| One Edit Distance | Medium |
| Permutation in String | Medium |
| Isomorphic Strings | Easy |
| Line Reflection | Medium |
| Longest Strictly Increasing or Strictly Decreasing Subarray | Easy |
Frequently Asked Questions
How many LeetCode questions do Deloitte and Yandex share?
Deloitte and Yandex share 19 LeetCode interview questions. 24 problems appear only in Deloitte's list and 109 appear only in Yandex's list.
What topics overlap most between Deloitte and Yandex?
The most common shared topics between Deloitte and Yandex are Array (10 shared questions), String (8 shared questions), Hash Table (6 shared questions), Two Pointers (4 shared questions), Dynamic Programming (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Deloitte or Yandex?
Deloitte has 17 Easy, 23 Medium, and 3 Hard questions. Yandex has 51 Easy, 67 Medium, and 10 Hard questions. Yandex has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Deloitte and Yandex?
Start with the 19 shared problems since they cover what both companies ask most often. Then add 20 Deloitte-specific and 20 Yandex-specific questions to round out your prep.