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Quick hints: tag:tagname, user:xxx, "exact phrase", post_type:xxx, created:<N{d,w,mo,y}, score:>=0.5

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Challenges Cumulative Counts

Haskell + hgl, 10 bytes mpn$ce~<gj Attempt This Online! Explanation mpn map across all non-empty prefixes of the input ... ce count the number of elements in each prefix equal to ... g...

posted 11mo ago by WheatWizard‭

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Challenges Encode with ROT13.5

Bash, 31 bytes tr a-zA-Z0-9 n-za-mN-ZA-M5-90-4 Try it online!

posted 1y ago by celtschk‭

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Meta How should we handle incorrect answers?

Respect both sides We should consider how an approach would affect the poster of the incorrect answer, and how it would affect the posters of correct answers. Correct answers In general, allowin...

posted 1y ago by trichoplax‭

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Challenges Reverse an ASCII string

Standard ML, 23 bytes implode o rev o explode

posted 9mo ago by qwr‭

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Challenges Digit Sum Integer Sequence (working title)

Dyalog APL, 23 bytes {⍵+(⌈/+⌊/)10⊥⍣¯1⊢⍵}⍣⎕⊢1­⁡​‎‎⁡⁠⁢⁢⁢‏⁠‎⁡⁠⁢⁢⁣‏‏​⁡⁠⁡‌⁢​‎⁠⁠‎⁡⁠⁢⁡⁤‏⁠‎⁡⁠⁢⁢⁡‏‏​⁡⁠⁡‌⁣​‎‎⁡⁠⁢‏⁠‎⁡⁠⁣‏‏​⁡⁠⁡‌⁤​‎⁠‎⁡⁠⁤‏⁠‎⁡⁠⁢⁡‏⁠‎⁡⁠⁢⁢‏⁠‎⁡⁠⁢⁣‏⁠‎⁡...

posted 7mo ago by RubenVerg‭  ·  edited 7mo ago by RubenVerg‭

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Challenges Reverse an ASCII string

R, 32 bytes \(s)intToUtf8(rev(utf8ToInt(s))) Attempt This Online!

posted 9mo ago by qwr‭

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Sandbox Single character Roman numeral [FINALIZED]

posted 7mo ago by trichoplax‭  ·  edited 7mo ago by trichoplax‭

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Challenges Reverse an ASCII string

R + magrittr, 31 bytes .%>%utf8ToInt%>%rev%>%intToUtf8

posted 9mo ago by qwr‭

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Challenges Reverse an ASCII string

Brainfuck, 10 Bytes ,[>,]<[.<] Requires EOF to be 0. Try it online! ,[>,]<[.<] , # Read character [ ] # loop as long as current cell is not 0 (EOF) >, ...

posted 9mo ago by H_H‭  ·  edited 9mo ago by H_H‭

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Meta Default Rules: Code Golf I/O

A program may use IOs for input and output. A input can be read via IO, which can be a port with (multiple) IOs each IO reads a symbol (a bit or more when you have a ADC). Or it can come from fram...

posted 8mo ago by H_H‭

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Challenges Knight safe squares

Python, 143 bytes def r(i): y,z=65537,1+(1<<32);s=257*y*z;n=(i|(i&252*s)*y>>10|(i&254*s)*z>>17|(i&127*s)*z>>15|(i&63*s)*y>>6)&(1<<64)-1 ...

posted 8mo ago by Karl Knechtel‭

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Meta Leaderboards are live

Libraries are removed when "merge variants" is on. For example, this answer written in C (clang) uses a library called BMPL, so its header is C (clang) + BMPL. While there's nothing wrong with usin...

posted 3y ago by user‭

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Challenges Add two negabinary integers

Ruby, 75 bytes ->t,u{g=->a{a.reduce{-2*_1+_2}};('%b'%(g[t]+g[u]+(y=43690)^y)).to_i.digits} Try it online! Uses latest ruby features, so tio link will look different. Takes two digit a...

posted 3y ago by Razetime‭  ·  edited 3y ago by Razetime‭

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Challenges The Pell Numbers

JavaScript, 26 bytes Outputs the nth term, 0-indexed. f=n=>n<2?n:f(--n)*2+f(--n) Try it online! JavaScript, 49 bytes Outputs the first n terms as a comma delimited string. f=n=&gt...

posted 3y ago by Shaggy‭  ·  edited 3y ago by Shaggy‭

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Challenges "Hello, World!"

Lua, 20 bytes print"Hello, World!" Try it online!

posted 3y ago by General Sebast1an‭

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Challenges "Hello, World!"

Java, 37 Bytes v->System.out.print("Hello, World!");

posted 3y ago by deleted user  ·  edited 2y ago by Quintec‭

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Challenges "Hello, World!"

Charcoal, 13 bytes Hello, World! Try it online! I'm surprised no one even used Charcoal in the challenge. Guess I'll take it.

posted 3y ago by General Sebast1an‭

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Challenges "Hello, World!"

Bash, 21 Bytes print "Hello, World!"

posted 3y ago by deleted user  ·  edited 3y ago by deleted user

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Challenges "Hello, World!"

Pyth, 14 bytes "Hello, World! Try it online!

posted 3y ago by General Sebast1an‭

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Challenges "Hello, World!"

!@#$%^&*()_+, 17 bytes ^dlroW ,olleH(@) Try it online! Might learn this sometime but I found this.

posted 3y ago by General Sebast1an‭

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Challenges "Hello, World!"

Lean, 64 bytes def hello_world:io unit:=put_str"Hello, World!"#eval hello_world Try it online!

posted 3y ago by Kevin M. Mansour‭

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Challenges Guess the language! (Cops' Thread)

Japt, cracked by Shaggy, 17 bytes "Cops and Robbers Try it online! Don't think much recognize this language at all. This is supposed to be from Pyth, but Japt has this too, so it's certainly v...

posted 3y ago by General Sebast1an‭  ·  edited 3y ago by Shaggy‭

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Challenges "Hello, World!"

Forget, 319 bytes push 72;cleanse;pop;out;push 101;cleanse;pop;out;push 108;cleanse;pop;out;push 108;cleanse;pop;out;push 111;cleanse;pop;out;push 44;cleanse;pop;out;push 32;cleanse;pop;out;push 8...

posted 3y ago by General Sebast1an‭

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