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Code-golf is a competition to solve a particular problem in the fewest bytes of source code.

2 votes

Create an ASCII line, given a length

Python 3.8 (pre-release), 46 bytes for i in range(int(input())):print(' '*i+'\\') Try it online!
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3 votes

Print a 10 by 10 grid of asterisks

51AC8, 10 bytes 10[10\*×t] Try it Online! Explanation 10[10\*×t] 10 # Push 10 (for each loop; looping var) [ # Begin foreach loop (for 10 times) 10 # Push 10 \* # …
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3 votes

Print a 10 by 10 grid of asterisks

K (ngn/k), 16 14 13 bytes ` 0:10 10#"*" Try it online! Thanks to @Bubbler in the k tree for helping me out with this. ¯2 bytes thanks to @Bubbler ¯1 byte thanks to @Bubbler
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2 votes

Repeating slices of an array incrementally

Python 3, 71 bytes g=lambda x,s=1:[[c for c,_ in zip(x,range(s))]]+g(x[s:],s+1)if x else[] Try it online! -3 Thanks to @U12-Forward
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2 votes

Create an ASCII line, given a length

BQN, 14 11 bytesSBCS " \\"⊏˜↕=⌜↕ Run online! ¯3 thanks to @ovs
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6 votes

Create an ASCII line, given a length

51AC8, 10 bytes R[\ ×\\+t] Try it Online! -2 bytes due to an update. -7 bytes due to an update introducing for_each loops and range. -1 byte online interpreter and implicit input. Explanation …
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2 votes
0 answers
104 views

Tips for golfing in Fennel

Fennel is a lispy language which compiles to Lua. From its page: Fennel is a programming language that brings together the speed, simplicity, and reach of Lua with the flexibility of a lisp syntax an …
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1 vote

Rotate a number

K (ngn/k), 29 25 bytes {.(y#a),(y:-(#a)!y)_a:$x} Try it online! ¯4 thanks to @ovs
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4 votes

Is this a function?

K (ngn/k), 11 bytes {r~?r:*'?x} Try it online! Port of chunes' factor answer. Explanation {r~?r:*'?x} { } /function ?x /distinct values *' /first value of each …
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2 votes

Reduce using the lowest value

K (ngn/k), 8 bytes {x-x@<x} Try it online!
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0 votes

Number to Binary

flax, 1 byte B Attempt This Online! Builtin
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22 votes
53 answers
3k views

Create an ASCII line, given a length

Information Create a diagonal line given its length (let’s call the variable, say, \$n\$ where \$n > 0\$) The diagonal line starts from the top left and goes to the bottom right. You must use the ASC …
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1 vote

Transpose a 3x3 matrix across the anti-diagonal

flax, 2 bytes Ṙ∝ ATO doesn't have the lastest commit of flax (because I keep discovering bugs). So here is an image of it in action:
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1 vote

Is it a balanced number?

flax, 7 bytes EṠXFz˘D Port of the 05AB1E answer. Ties with jelly. No online link as the latest commit is not on ATO. Explanation EṠXFz˘D D ⊳ Digits z˘ ⊳ Zip with itself F ⊳ Flat …
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6 votes

Fibonacci-like gap formula

Python 3.8 (pre-release), 60 58 bytes lambda u,v,a:[(p:=u/2-(u*u/4+v)**.5)**a+(u-p)**a,-(-v)**a] Try it online! ¯2 thanks to @tsh Originally based on @tsh's answer (now removed due to no complex num …
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