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7 kyu
SQL Basics: Raise to the Power
11,844PG1
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5 kyu
SQL Basics: Group By Day
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SQL Basics: Simple EXISTS
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6 kyu
SQL Basics: Simple HAVING
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SQL Basics: Simple table totaling.
10,064matt c
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SQL Bug Fixing: Fix the JOIN
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Rectangle into Squares
32,451g964
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Take a Ten Minutes Walk
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Valid Phone Number
19,698xDranik
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5 kyu
Human Readable Time
142,485BattleRattle
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Bit Counting
241,761xcthulhu
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7 kyu
Highest and Lowest
297,359Deantwo
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7 kyu
Moves in squared strings (I)
13,395g964
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Counting sheep...
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Flattening Lists
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