BlackRockLeetCode Questions
VerifiedCommunity-reported coding interview questions for BlackRock, organized by frequency across 30-day, 3-month, and 6-month recency windows.
# | Problem | Difficulty | Frequency↓ | Acceptance | |
|---|---|---|---|---|---|
| #202 | Happy Number3 sources | Easy | 100% | 59.9% | |
| #20 | Valid Parentheses3 sources | Easy | 91% | 44.5% | |
| #3068 | Find the Maximum Sum of Node Values2 sources | Hard | 75% | 69.4% | |
| #3004 | Maximum Subtree of the Same Color2 sources | Medium | 75% | 58.8% | |
| #235 | Medium | 68% | 0.7% | ||
| #49 | Group Anagrams3 sources | Medium | 64% | 72.9% | |
| #121 | Best Time to Buy and Sell Stock3 sources | Easy | 63% | 57.0% | |
| #236 | Medium | 60% | 0.7% | ||
| #3998 | Medium | 55% | 0.4% | ||
| #2291 | Maximum Profit From Trading Stocks2 sources | Medium | 51% | 48.3% | |
| #1 | Two Sum3 sources | Easy | 47% | 57.8% | |
| #70 | Climbing Stairs3 sources | Easy | 47% | 54.2% | |
| #12 | Integer to Roman3 sources | Medium | 47% | 71.2% | |
| #200 | Number of Islands2 sources | Medium | 43% | 64.7% | |
| #5 | Longest Palindromic Substring2 sources | Medium | 43% | 38.2% | |
| #268 | Missing Number2 sources | Easy | 43% | 72.3% | |
| #287 | Find the Duplicate Number2 sources | Medium | 43% | 64.6% |
BlackRock Technical Interview Overview & Company-Wise Questions
This page organizes 17 community-reported BlackRock LeetCode problems by difficulty, frequency, and recency so you can build a focused preparation queue. Reports are aggregated from public datasets and should be treated as preparation signals rather than predictions.
How to prioritize BlackRock preparation
Start with the 4 questions reported in the last 30 days, then work through the highest-frequency topics (Array, Dynamic Programming, Hash Table, String). This page tracks 17 community-reported questions across 6 Easy, 10 Medium, and 1 Hard problems. Data refreshed Oct 28, 2026.
Frequently Asked Questions
What are the most frequent LeetCode questions for BlackRock?
The leading problems in the available BlackRock interview reports include Happy Number, Valid Parentheses, Find the Maximum Sum of Node Values. This page tracks 17 reported problems across Easy (6), Medium (10), and Hard (1) difficulty levels.
Where can I practice company-wise LeetCode questions for BlackRock?
You can review all 17 BlackRock questions on this page, filter them by 30-day, 3-month, 6-month, and all-time windows, and save practice progress for free.
How does LeetMap Pro organize BlackRock interview problem recency?
LeetMap Pro groups community-reported occurrences into 30-day, 3-month, 6-month, and older windows. These are preparation signals from the available sources, not guarantees that a problem will appear in a future interview.
What is the difficulty distribution for BlackRock coding questions?
Medium is the largest tracked difficulty group for BlackRock, with 10 problems. The full distribution is 6 Easy, 10 Medium, and 1 Hard.