Proofpoint LeetCode Interview Questions
Practice 38 real coding problems frequently asked in Proofpoint technical interviews. Master these questions to ace your next Proofpoint software engineering interview.
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Proofpoint Interview Problems
| Problem | DifficultyDiff | Action |
|---|---|---|
Binary Tree Maximum Path Sum 100% | HardH | Solve→ |
Pow(x, n) 94% | MediumM | Solve→ |
Median of Two Sorted Arrays 87% | HardH | Solve→ |
Kth Missing Positive Number 82% | EasyE | Solve→ |
Reverse Words in a String 77% | MediumM | Solve→ |
Integer to English Words 75% | HardH | Solve→ |
Number of Distinct Islands 73% | MediumM | Solve→ |
Create Hello World Function 71% | EasyE | Solve→ |
Check if One String Swap Can Make Strings Equal 71% | EasyE | Solve→ |
Regular Expression Matching 70% | HardH | Solve→ |
Maximum Beauty of an Array After Applying Operation 68% | MediumM | Solve→ |
Top K Frequent Elements 66% | MediumM | Solve→ |
Roman to Integer 63% | EasyE | Solve→ |
Remove Nth Node From End of List 61% | MediumM | Solve→ |
Maximum Matrix Sum 61% | MediumM | Solve→ |
Word Break 60% | MediumM | Solve→ |
K Closest Points to Origin 59% | MediumM | Solve→ |
K-diff Pairs in an Array 59% | MediumM | Solve→ |
Open the Lock 56% | MediumM | Solve→ |
Shortest Word Distance II 51% | MediumM | Solve→ |
Toeplitz Matrix 49% | EasyE | Solve→ |
Max Consecutive Ones III 49% | MediumM | Solve→ |
Best Time to Buy and Sell Stock IV 47% | HardH | Solve→ |
Product of Array Except Self 46% | MediumM | Solve→ |
Number of Islands 46% | MediumM | Solve→ |
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Take Gifts From the Richest Pile 43% | EasyE | Solve→ |
Maximum Subarray 42% | MediumM | Solve→ |
N-Queens 39% | HardH | Solve→ |
Min Stack 38% | MediumM | Solve→ |
Counting Bits 38% | EasyE | Solve→ |
Ransom Note 36% | EasyE | Solve→ |
Longest Increasing Path in a Matrix 35% | HardH | Solve→ |
Merge Intervals 30% | MediumM | Solve→ |
Copy List with Random Pointer 29% | MediumM | Solve→ |
Longest Repeating Character Replacement 28% | MediumM | Solve→ |
Vertical Order Traversal of a Binary Tree 24% | HardH | Solve→ |
Design Snake Game 23% | MediumM | Solve→ |
Valid Palindrome 22% | EasyE | Solve→ |
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Frequently Asked Questions
What LeetCode problems does Proofpoint ask in interviews?
Proofpoint commonly asks 38 coding problems in technical interviews, including Binary Tree Maximum Path Sum, Pow(x, n), Median of Two Sorted Arrays. The difficulty breakdown is 9 Easy, 21 Medium, and 8 Hard problems.
How should I prepare for a Proofpoint coding interview?
Focus on the most frequently asked problems first, especially those with high frequency scores. Proofpoint interviews typically emphasize Array and Hash Table. Practice explaining your thought process while coding.
What is the difficulty level of Proofpoint coding interviews?
Based on our data, Proofpoint interviews include 9 Easy (24%), 21 Medium (55%), and 8 Hard (21%) problems.
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