sandy_heron_7722
Exemplar
Top 2.6%
Member Nº 3632
Joined Jul 2026
SQL
Window Deduplication
Common Table Expressions
Inequality Joins
Python
Dict Merging
Frequency Counting
List Comprehension
Spark
Inequality Joins
Regex Functions
Catalyst Optimizer
Data Modeling
Self-Referential
Many-to-Many
One-to-One
Solved
Milestones
Top 5% SQL
10 solved
Solution author
970 runs in the past 26 weeksActive days: 14 · Max streak: 6
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Recent solves
The Bouncer
Python · easy
Collections: Advanced
Python · medium · lesson
Collections: Advanced, bisect Binary Search Challenge 2
Python · medium · lesson
Collections: Advanced, bisect Binary Search Challenge 1
Python · medium · lesson
Collections: Advanced, deque Double-Ended Operations Challenge 2
Python · medium · lesson
Collections: Advanced, deque Double-Ended Operations Challenge 1
Python · medium · lesson
Collections: Advanced, heapq Operations Challenge 2
Python · medium · lesson
Collections: Advanced, heapq Operations Challenge 1
Python · medium · lesson
Dictionaries: Intermediate, Nested Dictionaries and Lists Challenge 3
Python · medium · lesson
Dictionaries: Intermediate, Merging Dictionaries Challenge 2
Python · medium · lesson