Sigmoid LeetCode Interview Questions
Practice 41 real coding problems frequently asked in Sigmoid technical interviews. Master these questions to ace your next Sigmoid software engineering interview.
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Sigmoid Interview Problems
| Problem | DifficultyDiff | Action |
|---|---|---|
LFU Cache 100% | HardH | Solve→ |
Expression Add Operators 100% | HardH | Solve→ |
Interval List Intersections 99% | MediumM | Solve→ |
Meeting Rooms II 99% | MediumM | Solve→ |
Final Array State After K Multiplication Operations I 91% | EasyE | Solve→ |
Number of Islands 87% | MediumM | Solve→ |
The kth Factor of n 87% | MediumM | Solve→ |
Move Pieces to Obtain a String 86% | MediumM | Solve→ |
Unique Paths 86% | MediumM | Solve→ |
Maximum Profit in Job Scheduling 83% | HardH | Solve→ |
Split Array Largest Sum 83% | HardH | Solve→ |
Longest Palindromic Substring 81% | MediumM | Solve→ |
Max Stack 81% | HardH | Solve→ |
N-Queens 80% | HardH | Solve→ |
Logger Rate Limiter 78% | EasyE | Solve→ |
Diameter of Binary Tree 74% | EasyE | Solve→ |
Lowest Common Ancestor of a Binary Tree III 73% | MediumM | Solve→ |
Continuous Subarray Sum 72% | MediumM | Solve→ |
Fraction to Recurring Decimal 69% | MediumM | Solve→ |
String to Integer (atoi) 68% | MediumM | Solve→ |
Product of Array Except Self 59% | MediumM | Solve→ |
Bus Routes 56% | HardH | Solve→ |
Open the Lock 55% | MediumM | Solve→ |
Maximum Units on a Truck 53% | EasyE | Solve→ |
Insert Delete GetRandom O(1) - Duplicates allowed 53% | HardH | Solve→ |
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Letter Combinations of a Phone Number 53% | MediumM | Solve→ |
Buildings With an Ocean View 52% | MediumM | Solve→ |
Remove All Adjacent Duplicates in String II 45% | MediumM | Solve→ |
Merge Strings Alternately 42% | EasyE | Solve→ |
Identify the Largest Outlier in an Array 41% | MediumM | Solve→ |
Flood Fill 40% | EasyE | Solve→ |
Merge Sorted Array 38% | EasyE | Solve→ |
Dot Product of Two Sparse Vectors 33% | MediumM | Solve→ |
Zero Array Transformation I 33% | MediumM | Solve→ |
K-diff Pairs in an Array 32% | MediumM | Solve→ |
Add Two Integers 31% | EasyE | Solve→ |
Missing Number 30% | EasyE | Solve→ |
Valid Sudoku 25% | MediumM | Solve→ |
Analyze User Website Visit Pattern 24% | MediumM | Solve→ |
Plus One 23% | EasyE | Solve→ |
Word Break 20% | MediumM | Solve→ |
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Frequently Asked Questions
What LeetCode problems does Sigmoid ask in interviews?
Sigmoid commonly asks 41 coding problems in technical interviews, including LFU Cache, Expression Add Operators, Interval List Intersections. The difficulty breakdown is 10 Easy, 23 Medium, and 8 Hard problems.
How should I prepare for a Sigmoid coding interview?
Focus on the most frequently asked problems first, especially those with high frequency scores. Sigmoid interviews typically emphasize Array and Hash Table. Practice explaining your thought process while coding.
What is the difficulty level of Sigmoid coding interviews?
Based on our data, Sigmoid interviews include 10 Easy (24%), 23 Medium (56%), and 8 Hard (20%) problems.
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