Product
Pricing
Blog
Forum
NEW
Referral
Description
Solution
Discussion
Submissions
Ask AI
AI Insights
Quick Summary
Parse chronological log entries containing user IDs, actions, and timestamps.
Pair each sign-in with its immediately following sign-out for the same user.
Return unique user IDs that have at least one session duration within the limit.
What This Tests
Hash map usage for maintaining transient state
String splitting and field extraction
Sequential event pairing and validation
Set-based deduplication
Common Patterns
Hashing
Collapse
Hint 1
Hint 2
What Interviewers May Ask Next
Report
Report seen similar question in interview
Accepted
802
/1.5k
Acceptance Rate
52.7%
Ask AI Assistant
Ask AI Assistant
Ask me anything about this coding question!
Python3
Auto
Debug
Run
Submit
Test Cases
Input
logs =
maxTime =
Output
Expected
