System1 LeetCode Interview Questions
Practice 38 real coding problems frequently asked in System1 technical interviews. Master these questions to ace your next System1 software engineering interview.
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System1 Interview Problems
| Problem | DifficultyDiff | Action |
|---|---|---|
Insert into a Sorted Circular Linked List 100% | MediumM | Solve→ |
Find Peak Element 92% | MediumM | Solve→ |
Add Strings 88% | EasyE | Solve→ |
Simplify Path 88% | MediumM | Solve→ |
Binary Tree Vertical Order Traversal 86% | MediumM | Solve→ |
Walls and Gates 82% | MediumM | Solve→ |
String to Integer (atoi) 80% | MediumM | Solve→ |
Minimum Area Rectangle 79% | MediumM | Solve→ |
Longest Increasing Subsequence 72% | MediumM | Solve→ |
Reverse Linked List 72% | EasyE | Solve→ |
Minimum Limit of Balls in a Bag 71% | MediumM | Solve→ |
Search Insert Position 70% | EasyE | Solve→ |
Maximum Beauty of an Array After Applying Operation 70% | MediumM | Solve→ |
Longest Palindromic Substring 69% | MediumM | Solve→ |
Ransom Note 67% | EasyE | Solve→ |
Copy List with Random Pointer 61% | MediumM | Solve→ |
Adding Spaces to a String 58% | MediumM | Solve→ |
Create Hello World Function 57% | EasyE | Solve→ |
String Compression 57% | MediumM | Solve→ |
Alien Dictionary 55% | HardH | Solve→ |
Check If a Word Occurs As a Prefix of Any Word in a Sentence 53% | EasyE | Solve→ |
Rank Transform of a Matrix 48% | HardH | Solve→ |
Pascal's Triangle 47% | EasyE | Solve→ |
Maximum Size Subarray Sum Equals k 46% | MediumM | Solve→ |
Missing Ranges 43% | EasyE | Solve→ |
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Final Array State After K Multiplication Operations I 41% | EasyE | Solve→ |
Same Tree 37% | EasyE | Solve→ |
Analyze User Website Visit Pattern 35% | MediumM | Solve→ |
Check If N and Its Double Exist 34% | EasyE | Solve→ |
Remove All Adjacent Duplicates In String 33% | EasyE | Solve→ |
Open the Lock 31% | MediumM | Solve→ |
Zero Array Transformation II 27% | MediumM | Solve→ |
Find K Closest Elements 26% | MediumM | Solve→ |
Diameter of Binary Tree 26% | EasyE | Solve→ |
Search Suggestions System 23% | MediumM | Solve→ |
Valid Palindrome 20% | EasyE | Solve→ |
Kth Largest Element in an Array 20% | MediumM | Solve→ |
K-diff Pairs in an Array 20% | MediumM | Solve→ |
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Frequently Asked Questions
What LeetCode problems does System1 ask in interviews?
System1 commonly asks 38 coding problems in technical interviews, including Insert into a Sorted Circular Linked List, Find Peak Element, Add Strings. The difficulty breakdown is 14 Easy, 22 Medium, and 2 Hard problems.
How should I prepare for a System1 coding interview?
Focus on the most frequently asked problems first, especially those with high frequency scores. System1 interviews typically emphasize Array and String. Practice explaining your thought process while coding.
What is the difficulty level of System1 coding interviews?
Based on our data, System1 interviews include 14 Easy (37%), 22 Medium (58%), and 2 Hard (5%) problems.
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