Ad
7 kyu
Square Every Digit
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8 kyu
Duck Duck Goose
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Array.diff
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5 kyu
Common Denominators
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Exclamation marks series #1: Remove an exclamation mark from the end of string
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8 kyu
Count of positives / sum of negatives
149,603Dentzil
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7 kyu
Don't give me five!
41,339user5036852
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5 kyu
Greed is Good
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6 kyu
Unique In Order
184,601pinelopi
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5 kyu
SQL Basics: Group By Day
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6 kyu
SQL Bug Fixing: Fix the JOIN
9,136matt c
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SQL Basics: Simple UNION ALL
12,004matt c
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1. Find all active students
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SQL Basics: Simple DISTINCT
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SQL Basics: Simple WHERE and ORDER BY
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