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3 kyu
Make a spiral
15,296Bugari
Completed Languages:
4 kyu
Hamming Numbers
12,486xcthulhu
Completed Languages:
4 kyu
Next smaller number with the same digits
11,915LesRamer
Completed Languages:
4 kyu
Snail
80,207stevenbarragan
Completed Languages:
4 kyu
Square into Squares. Protect trees!
11,343g964
Completed Languages:
4 kyu
Smallest possible sum
8,154dkhaburdzania
Completed Languages:
4 kyu
Sum of Intervals
40,857xDranik
Completed Languages:
4 kyu
The observed PIN
39,034BattleRattle
Completed Languages:
4 kyu
Sum by Factors
20,198g964
Completed Languages:
4 kyu
Adding Big Numbers
34,429Becojo
Completed Languages:
5 kyu
Going to zero or to infinity?
6,141g964
Completed Languages:
4 kyu
Next bigger number with the same digits
39,622GiacomoSorbi
Completed Languages:
7 kyu
Growth of a Population
171,012g964
Completed Languages:
4 kyu
Sum Strings as Numbers
46,263nicknovitski
Completed Languages:
4 kyu
Large Factorials
9,592matt c
Completed Languages:
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