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Challenges Print the Great Numeric Pyramid

BQN, 33 bytesSBCS >(⌽(⊑¨55↑+˜⊸+⊔'0'+⌽⊸⌊⊸⌊)¨˜1↓↑)↕28 Run online! Minimum of barycentric coordinates placed according to a skew transformation on two of them. So, the min(i,j,27-i-j) thing pr...

posted 4y ago by Marshall Lochbaum‭

Answer
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Challenges Backspace an array

Python 3.8 (pre-release), 62 bytes f=lambda x,a=[]:f(x[1:],a+[x[0]]if x[0]else a[:-1])if x else a Try it online! -11 bytes thanks to user

posted 4y ago by hyper-neutrino‭  ·  edited 4y ago by hyper-neutrino‭

Answer
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+1 −0
Challenges Backspace an array

JavaScript (Node.js), 41 40 bytes Saved 1 byte thanks to Shaggy x=>x.map(e=>e?a.push(e):a.pop(),a=[])&&a Try it online! x => //x is the input x.map(e=> //For every...

posted 4y ago by user‭  ·  edited 4y ago by user‭

Answer
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Challenges Shuffle a subset of a list

APL(Dyalog Unicode), 13 bytes SBCS {⍵[?⍨≢⍵]}@⎕⊢⎕ Try it on APLgolf! A tradfn submission which takes both lists on STDIN, second input is 1-indexed.

posted 4y ago by Razetime‭

Answer
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Challenges Shuffle a subset of a list

Japt, 17 bytes ô@VøYÃíUgV öx)c f Try it Japt, 17 bytes ô@VøYÃíUgV öx)c f Try it ô@VøYÃíUgV öx)c f :Implicit input of arrays U=integers & V=indices ô :Split U ...

posted 4y ago by Shaggy‭  ·  edited 4y ago by Shaggy‭

Answer
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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 4y ago by user‭

Answer
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Challenges A number adder, not a death adder

Python 3, 58 39 bytes P1: print(f"print(int(input())+{input()})") Try it online! P2 (given I inputted 10, 30 22 bytes): print(int(input())+10) Try it online!

posted 4y ago by General Sebast1an‭  ·  edited 4y ago by General Sebast1an‭

Answer
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Challenges "Hello, World!"

Forth (gforth), 16 bytes ." Hello, World! Try it online!

posted 4y ago by nizish‭

Answer
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Challenges Add two negabinary integers

Jelly, 6 bytes ḅSbɗ-2 Try it online! Takes input and output as a pair of lists of digits. The Footer converts to and from. Jelly's generalised base conversion works for all integer bases, and...

posted 4y ago by caird coinheringaahing‭  ·  edited 4y ago by caird coinheringaahing‭

Answer
60%
+1 −0
Challenges Add two negabinary integers

Japt, 8 bytes Input as an array of negabinary digit arrays, output as a negabinary digit array. xì2n)ì2n Try it or run all test cases (headers & footers convert to & from digit arrays)...

posted 4y ago by Shaggy‭  ·  edited 4y ago by Shaggy‭

Answer
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Challenges The Pell Numbers

Japt, 11 9 bytes Outputs the first n terms. Change the h to g to get the nth 0-indexed term. ÈÑ+ZÔÅÎ}h Try it ÈÑ+ZÔÅÎ}h :Implicit input of integer U È :Function taking an int...

posted 4y ago by Shaggy‭  ·  edited 4y ago by Shaggy‭

Answer
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Meta Leaderboard bug: recognizing inline code blocks

There's a small problem with the leaderboard: It seems to be recognizing the first <code> block in the answer rather than the first <pre><code> block in the answer. The byte co...

0 answers  ·  posted 4y ago by Razetime‭  ·  edited 4y ago by Monica Cellio‭

Question bug discussion status-completed
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Challenges Multiply complex numbers.

Ruby, 35 bytes ->a{a.split.map{eval _1}.reduce :*} Try it online! Right tool for the job, I suppose. uses ruby 2.7+ features, so tio link will look different.

posted 4y ago by Razetime‭

Answer
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Meta Default Rules: Code Golf I/O

Image output may be a pixel shader A pixel shader inputs x,y coordinates of a pixel and prints the color of a pixel (scalar for grayscale, tuple for full color, bool for binary...). Relevant for S...

posted 4y ago by AndrewTheCodegolfer‭

Answer
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Challenges 1, 2, Fizz, 4, Buzz!

Sclipting, (UTF-16) 62 bytes 감 뉀上標❷갰剩虛끦땺뎠嗎❸걐剩虛뀧녺뎠嗎併梴是⓶終丟終并겠會

posted 4y ago by Moshi‭

Answer
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Challenges Caesar shift cipher

C (clang), 161 bytes i,j,k;main(){char *s;scanf("%i%[^\n]%*c",&i,s);for(j=0;j<strlen(s);j++){if(isalpha(s[j])){for(k=0;k<i;k++){if(s[j]==90||s[j]==122){s[j]-=26;}s[j]+=1;}}}puts(s);} ...

posted 4y ago by General Sebast1an‭  ·  edited 4y ago by General Sebast1an‭

Answer
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Challenges "Hello, World!"

Kotlin, 34 bytes fun main(){print("Hello, World!")} Try it online!

posted 4y ago by Kevin M. Mansour‭

Answer
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Challenges "Hello, World!"

Swift, 23 bytes print("Hello, World!") Try it online!

posted 4y ago by Kevin M. Mansour‭

Answer
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Challenges "Hello, World!"

PureScript, 25 bytes main=log("Hello, World!") Try it online!

posted 4y ago by Kevin M. Mansour‭

Answer
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Q&A Tips for golfing in C

Assign ints before main(){} This is a combination of 2 golfing tricks. It's possible to write a program as just main(){}, though it will send a warning, not an error though, so it's still safe to ...

posted 4y ago by General Sebast1an‭  ·  edited 4y ago by General Sebast1an‭

Answer
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Challenges Guess the language! (Cops' Thread)

Canvas, cracked by Shaggy, 129 bytes /bin/bash > echo "Cops and Robbers"; #Testing, testing 1 2 3 Segmentation Fault > echp "Cops and Robbers"; #Huh? Cops and Robbers This version of ...

posted 4y ago by Quintec‭  ·  edited 4y ago by Shaggy‭

Answer
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Challenges Guess the language! (Cops' Thread)

Erlang (escript), 43 bytes - cracked by Shaggy main([])-> io:fwrite("Cops and Robbers"). Printing Cops and Robbers as the challenge says. Try it online!

posted 4y ago by Kevin M. Mansour‭  ·  edited 4y ago by Shaggy‭

Answer
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Challenges "Hello, World!"

Rockstar, 19 bytes say "Hello, World!" Try it here (Code will need to be pasted in)

posted 4y ago by Shaggy‭

Answer
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Challenges "Hello, World!"

C# (.NET Core), 67 bytes class a{static void Main(){System.Console.Write("Hello, World!");}} Try it online!

posted 4y ago by General Sebast1an‭  ·  edited 3y ago by General Sebast1an‭

Answer
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Challenges Guess the language! (Cops' Thread)

Verbosity, 512 bytes, cracked by Moshi Include<Integer> Include<MetaFunctions> Include<Output> Include<String> Integer:DefineVariable<IntegerOne; 1> Output:Def...

posted 4y ago by user‭  ·  edited 4y ago by user‭

Answer