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

0 votes

Pointers, pointers, pointers!

PowerShell Core, 29 27 bytes $args[1] '^'|% *ft $args[0] Try it online! -2 bytes thanks to Mazzy!
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2 votes

Produce a List of Rotonyms 2

PowerShell Core, 131 bytes ($t=$args|%{@{r=0..($l=($k=$_).Length-1)|%{-join$k[-$_..($l-$_)]} w=$_}})|%{$u=$_ $t|?{$u.w-ne$_.w-and$u.w-in$_.r}|%{$_.w}}|sort|gu Try it online! For each word in the lis …
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  • 3,246
2 votes

The Unaverageables

PowerShell Core, 68 bytes ($a=$args)|?{$_-notin($a|%{$a-ne($c=$_)|%{$_,$c*(($_+$c)/2-in$a)}})} Try it online!
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  • 3,246
3 votes

Output / Convert to unary number

Alice, 15 bytes / M \1*.n$@9ot Try it online! The new line at the end of the code is required Uses tab as the output character / M \1*.n$@9ot # Full program / M \1* # Reads one argument …
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1 vote

Compute the conjugate of a partition

PowerShell Core, 37 bytes 1..($a=$args)[0]|%{($a-ge++$i).Count} Try it online! Takes a list of integers, returns a list of integers 1..($a=$args)[0]|%{($a-ge++$i).Count} 1..($a=$args)[0]|%{ …
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  • 3,246
1 vote

One-Dimensional Pinball

PowerShell Core, 85 bytes filter f{param($c,$s)&({$c},{2*($s[$_]=!$s[$_])-1+$_|f($c+1)$s})[$_+1-in1..$s.Count]} Try it online! Recursive filter Takes an array of booleans true for < false for > Re …
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  • 3,246
0 votes

Fixed Repeating Output

PowerShell Core, 13 bytes ,1*"$input" 0 Try it online! Outputs to stdout and is newline separated Uses the $input variable to access stdin ,1*"$input" # generate an array of 1 of the size of $input …
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0 votes

Caesar equivalence

PowerShell Core, 68 66 bytes $a,$b=$args;(1..$a.Length|%{($a[--$_]-$b[$_]+26)%26}|gu).count-eq1 Try it online! (1..$a.Length # Builds an array of the size …
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  • 3,246
1 vote

The Last Monday

PowerShell Core, 73 65 bytes param($a)1..12|?{"$_/1/$a"|get-date|% *hs 1|% *ys -1|? d*k -eq 1} This requires the regional settings to use the en-US date format. Explanations Assumes the year is a st …
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  • 3,246
2 votes

Print the missing characters

PowerShell Core, 39 32 bytes $a=$args ' '..'~'|?{$_-cnotin$a} Added splatting and case sensitivity Try it online! Inspired by colsw's answer
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2 votes

Follow a linked list

PowerShell Core, 27 22 bytes for(){($i=$args[+$i])} -5 bytes thanks to mazzy! Try it online! 0 indexed, takes the list as an array as parameters and outputs the result list on the standard output
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1 vote

Rocket Liftoff!

PowerShell Core, 37 bytes 10..1|%{"Liftoff in T-$_"} "LIFTOFF!" Try it online!
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  • 3,246
2 votes

There Was an Old Lady

PowerShell Core, 503 484 bytes $i=" bird" $k=" swallowed" $g="She$k the" $h=" to catch the" $c="There was an old lady who$k a" $e=" to swallow a" $s=" spider" "$c fly." $c="`n$c" ($a="I don't know wh …
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1 vote

The n-th Ternary

PowerShell Core, 52 38 bytes param($a)(1..$a-join' ? ')+' : 0'*--$a Try it online! Save 14 bytes thanks to mazzy!
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  • 3,246
3 votes

Divisible strings

PowerShell Core, 40 33 bytes $l=$args.Count !($args|?{+$_%$l}) 7 bytes saved thanks to mazzy Try it online!
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