Canonical LeetCode Interview Questions
Practice 49 real coding problems frequently asked in Canonical technical interviews. Master these questions to ace your next Canonical software engineering interview.
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Canonical Interview Problems
| Problem | DifficultyDiff | Action |
|---|---|---|
Valid Anagram 100% | EasyE | Solve→ |
Vertical Order Traversal of a Binary Tree 97% | HardH | Solve→ |
The kth Factor of n 95% | MediumM | Solve→ |
Logger Rate Limiter 89% | EasyE | Solve→ |
Max Consecutive Ones III 86% | MediumM | Solve→ |
Maximum Units on a Truck 84% | EasyE | Solve→ |
Remove Duplicates from Sorted Array 83% | EasyE | Solve→ |
Remove Stones to Minimize the Total 83% | MediumM | Solve→ |
Design an Array Statistics Tracker 82% | HardH | Solve→ |
Search a 2D Matrix 77% | MediumM | Solve→ |
4Sum 77% | MediumM | Solve→ |
Valid Number 76% | HardH | Solve→ |
First Unique Character in a String 72% | EasyE | Solve→ |
Maximum Product Subarray 68% | MediumM | Solve→ |
Remove All Occurrences of a Substring 66% | MediumM | Solve→ |
Zero Array Transformation III 66% | MediumM | Solve→ |
Valid Sudoku 66% | MediumM | Solve→ |
Identify the Largest Outlier in an Array 62% | MediumM | Solve→ |
Maximum Matrix Sum 58% | MediumM | Solve→ |
Longest Subarray of 1's After Deleting One Element 58% | MediumM | Solve→ |
Unique Paths 51% | MediumM | Solve→ |
Final Array State After K Multiplication Operations I 49% | EasyE | Solve→ |
Custom Sort String 49% | MediumM | Solve→ |
Convert Sorted List to Binary Search Tree 49% | MediumM | Solve→ |
Remove All Adjacent Duplicates In String 48% | EasyE | Solve→ |
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3Sum 48% | MediumM | Solve→ |
Word Search 47% | MediumM | Solve→ |
Maximize Amount After Two Days of Conversions 45% | MediumM | Solve→ |
Asteroid Collision 44% | MediumM | Solve→ |
Rank Transform of a Matrix 43% | HardH | Solve→ |
K Closest Points to Origin 42% | MediumM | Solve→ |
Digit Operations to Make Two Integers Equal 42% | MediumM | Solve→ |
Shortest Word Distance II 39% | MediumM | Solve→ |
Convert Binary Search Tree to Sorted Doubly Linked List 38% | MediumM | Solve→ |
Binary Tree Vertical Order Traversal 37% | MediumM | Solve→ |
Maximum Sum of Distinct Subarrays With Length K 35% | MediumM | Solve→ |
Combination Sum II 35% | MediumM | Solve→ |
Merge Intervals 34% | MediumM | Solve→ |
Design an Ordered Stream 33% | EasyE | Solve→ |
Find Median from Data Stream 31% | HardH | Solve→ |
Min Stack 29% | MediumM | Solve→ |
Move Pieces to Obtain a String 26% | MediumM | Solve→ |
Maximum Beauty of an Array After Applying Operation 26% | MediumM | Solve→ |
Single Number 25% | EasyE | Solve→ |
Ransom Note 25% | EasyE | Solve→ |
The Earliest Moment When Everyone Become Friends 23% | MediumM | Solve→ |
String Compression 22% | MediumM | Solve→ |
Koko Eating Bananas 20% | MediumM | Solve→ |
Merge Sorted Array 20% | EasyE | Solve→ |
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Frequently Asked Questions
What LeetCode problems does Canonical ask in interviews?
Canonical commonly asks 49 coding problems in technical interviews, including Valid Anagram, Vertical Order Traversal of a Binary Tree, The kth Factor of n. The difficulty breakdown is 11 Easy, 33 Medium, and 5 Hard problems.
How should I prepare for a Canonical coding interview?
Focus on the most frequently asked problems first, especially those with high frequency scores. Canonical interviews typically emphasize Array and Sorting. Practice explaining your thought process while coding.
What is the difficulty level of Canonical coding interviews?
Based on our data, Canonical interviews include 11 Easy (22%), 33 Medium (67%), and 5 Hard (10%) problems.
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