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Code-golf is a competition to solve a particular problem in the fewest bytes of source code.
2
votes
Draw an ASCII envelope based on size input
Vyxal o, 37 bytes
\_*:£ðpm,ċ[ɽ‹\\꘍ṫ\_+J↲¥J\|vpvøṀ⁋|‛|\m
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\_* # <input> copies of _
:£ # Duplicate and set gregister
…
3
votes
Get the trends of an array
Vyxal, 14 bytes
¯±ĠvL0p¦2lvƒṡİ
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Port of Unrelated String's Jelly answer.
ĠvL # Get the lengths of the runs of identical...'
± # Signs
¯ # In the for …
15
votes
Average-ignorant sets of integers
A simple greedy approach gives the set [1, 2, 4, 5, 10, 11, 13, 14...]. This is probably optimal.
It can be constructed by:
Start with the set [1]
Forever:
Take the maximum value of the set, double …
13
votes
Egyptian fraction representations of 1
Vyxal, 10 bytes
¡ɾṗ'Ė∑1=;t
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Bruteforcer. \$O\left(2^{n!}\right)\$ time complexity, searches for fractions with reciprocals \$ n! \$ which seems to be enough.
¡ # Factorial
ɾṗ …