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1 kyu
7×7 Skyscrapers
2,010JohanWiltink
Completed Languages:
2 kyu
6 By 6 Skyscrapers
2,473FrankK
Completed Languages:
4 kyu
4 By 4 Skyscrapers
3,606FrankK
Completed Languages:
4 kyu
Smallest possible sum
7,703dkhaburdzania
Completed Languages:
8 kyu
Adults only (SQL for Beginners #1)
33,564MaikelNabil
Completed Languages:
8 kyu
SQL Basics: Mod
16,400PG1
Completed Languages:
8 kyu
For Twins: 2. Math operations
10,165Mishaboo
Completed Languages:
4 kyu
Range Extraction
58,747jhoffner
Completed Languages:
8 kyu
Returning Strings
231,195Aweson1
Completed Languages:
4 kyu
Next bigger number with the same digits
38,181GiacomoSorbi
Completed Languages:
6 kyu
Roman Numerals Encoder
56,039jhoffner
Completed Languages:
6 kyu
Find the missing letter
98,565user5036852
Completed Languages:
5 kyu
First non-repeating character
70,653OverZealous
Completed Languages:
6 kyu
Does my number look big in this?
176,288JulianNicholls
Completed Languages:
6 kyu
Fibonacci, Tribonacci and friends
13,381GiacomoSorbi
Completed Languages:
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