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Challenges Q&A Sandbox Meta
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Post Challenge

Can you give me half?

+11
−0

Challenge idea taken from: Eliseo D'Annunzio

Task

Provide code that evaluates to 0.5 numerically, i.e. the output must be recognized by your chosen language as a numeric value (Number, float, double, etc), not as a string.

The catch, the characters 0 through to 9 cannot be used.

One example that fits the brief would be the following:

((++[[]][[~~""]]<<++[[]][[~~""]]))**((--[[]][[~~""]])) which works out to 0.5 in JavaScript.

Scoring

This is a code challenge, where scoring is done in terms of number of unique characters used in the submission. Ties are broken by lowest bytecount.

alternative-scoring number code-challenge lowest-score
posted about 2 years ago
2y ago by Moshi‭
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Razetime‭
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2 comment threads

Languages without built in float (2 comments)
Leaderboard scores (1 comment)

23 answers

Score Active Age
+1
−0

Golfscript, 8 6 bytes, 5 unique

!).!(?

Explanation:

! # negate , no value makes it 1
) # increment -> 2
. # duplicate 2
! # negate 2 = 0
( # decrement -> -1
? # exponentiate, 2^-1 = 1/2

Original solution:

!)""!((?
posted over 1 year ago
1y ago
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taoh‭
21 reputation 0 2 2 7
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+1
−0

MATL, 3 distinct, 3 total

lH/

Try it online!

Computes 1/2. Reserved labels for constants can be found here

posted about 2 years ago
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south‭
351 reputation 0 44 35 22
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+1
−0

Vyxal, 1 byte

.

Try it Online!

Very simple 1 byter

posted over 1 year ago
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lyxal‭
416 reputation 2 17 45 18
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