D2l LeetCode Interview Questions
Practice 41 real coding problems frequently asked in D2l technical interviews. Master these questions to ace your next D2l software engineering interview.
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D2l Interview Problems
| Problem | DifficultyDiff | Action |
|---|---|---|
Minimum Path Sum 100% | MediumM | Solve→ |
Generate Parentheses 97% | MediumM | Solve→ |
Lowest Common Ancestor of a Binary Search Tree 95% | MediumM | Solve→ |
String to Integer (atoi) 94% | MediumM | Solve→ |
Max Consecutive Ones III 94% | MediumM | Solve→ |
Binary Tree Zigzag Level Order Traversal 90% | MediumM | Solve→ |
Design Snake Game 87% | MediumM | Solve→ |
Invalid Transactions 84% | MediumM | Solve→ |
Max Stack 83% | HardH | Solve→ |
Permutations 81% | MediumM | Solve→ |
Two Sum 80% | EasyE | Solve→ |
Bus Routes 79% | HardH | Solve→ |
Interval List Intersections 78% | MediumM | Solve→ |
Simplify Path 77% | MediumM | Solve→ |
Clone Graph 77% | MediumM | Solve→ |
Find K Closest Elements 73% | MediumM | Solve→ |
Two Sum II - Input Array Is Sorted 72% | MediumM | Solve→ |
Flatten Binary Tree to Linked List 70% | MediumM | Solve→ |
Find Score of an Array After Marking All Elements 70% | MediumM | Solve→ |
Capacity To Ship Packages Within D Days 69% | MediumM | Solve→ |
Minimum Absolute Difference 69% | EasyE | Solve→ |
First Unique Character in a String 67% | EasyE | Solve→ |
Merge Intervals 66% | MediumM | Solve→ |
Copy List with Random Pointer 66% | MediumM | Solve→ |
Regular Expression Matching 65% | HardH | Solve→ |
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Random Pick Index 64% | MediumM | Solve→ |
Maximum Beauty of an Array After Applying Operation 63% | MediumM | Solve→ |
Minimum Add to Make Parentheses Valid 62% | MediumM | Solve→ |
Maximum Matrix Sum 61% | MediumM | Solve→ |
Maximum Sum of Distinct Subarrays With Length K 60% | MediumM | Solve→ |
Find Leaves of Binary Tree 59% | MediumM | Solve→ |
Permutation in String 57% | MediumM | Solve→ |
Valid Palindrome III 54% | HardH | Solve→ |
Minimum Remove to Make Valid Parentheses 49% | MediumM | Solve→ |
Trapping Rain Water 46% | HardH | Solve→ |
All O`one Data Structure 46% | HardH | Solve→ |
Climbing Stairs 44% | EasyE | Solve→ |
Daily Temperatures 43% | MediumM | Solve→ |
Majority Element 36% | EasyE | Solve→ |
Find Longest Self-Contained Substring 35% | HardH | Solve→ |
Check Completeness of a Binary Tree 29% | MediumM | Solve→ |
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Frequently Asked Questions
What LeetCode problems does D2l ask in interviews?
D2l commonly asks 41 coding problems in technical interviews, including Minimum Path Sum, Generate Parentheses, Lowest Common Ancestor of a Binary Search Tree. The difficulty breakdown is 5 Easy, 29 Medium, and 7 Hard problems.
How should I prepare for a D2l coding interview?
Focus on the most frequently asked problems first, especially those with high frequency scores. D2l interviews typically emphasize Array and Hash Table. Practice explaining your thought process while coding.
What is the difficulty level of D2l coding interviews?
Based on our data, D2l interviews include 5 Easy (12%), 29 Medium (71%), and 7 Hard (17%) problems.
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