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Joined Jun 2026
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SQLPYSPKDMPA
SQL
Window Deduplication
Storage Optimization
String Building
Python
String Methods
Dict Methods
Frequency Counting
Spark
Window Deduplication
Exploding Arrays
Regex Functions
Data Modeling
Metric Additivity
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SQL110
Python71
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846 runs in the past 26 weeksActive days: 20 · Max streak: 6
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Recent solves
Summarize sensor readings with tuples and built-in functions
Python · medium · lesson
today
You have two variables: a = 100 and b = 200
Python · medium · lesson
today
Given the tuple record containing a name, age, and job title, unpack it into three variables: name,
Python · medium · lesson
today
Create a single-element tuple called solo containing only the value 42
Python · medium · lesson
yesterday
Create a tuple called coords containing the values 10, 20, and 30
Python · medium · lesson
yesterday
Start with tags = {'python', 'sql', 'go', 'rust'}
Python · medium · lesson
2 days ago
Given raw = ['x', 'y', 'z', 'x', 'y'], build a set from raw and store it in unique
Python · medium · lesson
2 days ago
Start with seen = set()
Python · medium · lesson
2 days ago
Write a function called has_duplicates that takes a list and returns True if it contains duplicate v
Python · medium · lesson
2 days ago
Given the list of coordinate pairs (as lists) called points, convert each inner list to a tuple and
Python · medium · lesson
2 days ago

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