Note: I'm not using the leaderboard format, for reasons that will become apparent later.
Let's suppose we have a rational approximation $d = \frac a b$ to some real number that we want to be, ...
JavaScript (Node.js), 67 60 bytes
o=>r=>Buffer(o).map(c=>c%32<26&c>64?(c%32+r)%26+c-c%32:c)+''
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o=>r=> // Define a function taking o an...
Vyxal s, 5 bytes
2=A[5
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You're not the only one who can abuse flags, Shaggy...
2= # Foreach, is it equal to to?
A[ # If all are 2
5 # Push a 5.
# (s flag) sum...
Vyxal R, 1 byte
R
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Function must be inserted in the header.
The R flag casts integers to ranges when an integer can't be used. R is the builtin for 'Reduce list by function', an...
Vyxal, 7 bytes
ɾĖ∑?≥)ṅ
Try it Online! Vyxal has arbitrary-precision rationals, so this will never run into precision errors.
ṅ # Find the first integer
-----) # where
∑ # sum of...
