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60%
+1 −0
Challenges Make a frequency table (histogram)

Factor, 46 bytes USE: math.statistics IN: h ALIAS: h histogram

posted 3y ago by gifti‭

Answer
60%
+1 −0
Challenges Cumulative Counts

Python 3, 70 bytes def f(a): d={};r=[] for x in a:d[x]=d.get(x,0)+1;r+=[d[x]] return r Try it online!

posted 3y ago by __blackjack__‭

Answer
60%
+1 −0
Challenges Find n Niven Numbers

Ruby, 56 bytes p *(1..).lazy.filter{_1%_1.digits.sum<1}.take(gets.to_i) Attempt This Online!

posted 3y ago by south‭

Answer
60%
+1 −0
Challenges Multiply complex numbers.

Sidef, 25 bytes {eval .split.join(" * ")} {eval .split.join(" * ")} { } # Create anonymous code block .split.join(" * ") # splits on whitespace and joins with "...

posted 3y ago by south‭

Answer
60%
+1 −0
Challenges Find n Niven Numbers

x86-64 machine code, 36 bytes 31 C0 8D 48 0A FF C0 50 99 89 17 48 F7 F1 01 17 99 85 C0 75 F6 58 50 F7 37 58 85 D2 75 E7 AB FF CE 75 E2 C3 Try it online! Following the standard calling conventi...

posted 3y ago by m90‭

Answer
60%
+1 −0
Challenges Multiply complex numbers.

Python 3, 63 bytes print(str(eval(f"({input().replace(' ',')*(')})")).strip("()")) Try it online! Similar to hyper-neutrino‭'s answer. Doesn't replace i by j and back, and uses f-string instea...

posted 3y ago by __blackjack__‭

Answer
60%
+1 −0
Challenges Looping counter

JavaScript, 25 bytes Could be 21 but calling the function like that feels like cheating. (f=s=>f(s+=8,print(s)))`` Try it online! 22 bytes Didn't want to post this as my main solution a...

posted 3y ago by Shaggy‭  ·  edited 2y ago by Shaggy‭

Answer
60%
+1 −0
Challenges Determine whether an integer is square-free

Japt, 5 bytes k eUâ Try it

posted 3y ago by Shaggy‭

Answer
60%
+1 −0
Challenges Looping counter

Japt, 6 bytes ßOpP±Q Test it ßOpP±Q ß :Recursive call Op :Output with trailing newline P :Empty string, initially ± :Append Q :Quotation mark

posted 3y ago by Shaggy‭  ·  edited 2y ago by Shaggy‭

Answer
60%
+1 −0
Meta Filtering the sandbox for ease of feedback

I'm leaving this answer here for any votes and discussion, but I no longer hold this opinion. I've posted a longer answer to explain why I've changed my mind After hearing about the filter devel...

posted 3y ago by trichoplax‭  ·  edited 2y ago by trichoplax‭

Answer
60%
+1 −0
60%
+1 −0
Challenges Presumptuous base conversion

C (gcc), 117 bytes b,r;f(char*s){char*p=s;for(;*p;p++)*p-=47+7*(*p>57),b=b<*p?*p:b;if(b<2)return p-s;for(;*s;s++)r*=b,r+=*s-1;return r;} Try it online!

posted 2y ago by celtschk‭

Answer
60%
+1 −0
Challenges Chequer checker

A chequer board (also spelt "checker board" in some places) is an 8 by 8 grid of squares alternating between 2 colours. Check whether a provided pattern could be a region of a chequer board. The c...

1 answer  ·  posted 2y ago by trichoplax‭  ·  edited 2y ago by trichoplax‭

Question code-golf string decision-problem
60%
+1 −0
Challenges "Hello, World!"

C (gcc), 46 bytes printf(char*);main(){printf("Hello, World!");} printf(char*);(14 bytes) is better than #include <stdio.h>\n(19 bytes)

posted 2y ago by Wyattk1093‭  ·  edited 2y ago by Wyattk1093‭

Answer
60%
+1 −0
Challenges Looping counter

Fig, 5 bytes The actual score is $5\log_{256}(96)\approx$ 4.116 bytes. The leaderboard only likes ints in the header. (J,Q0 -1 char thanks to Seggan Try it online! Fractional byte lang creat...

posted 2y ago by south‭  ·  edited 2y ago by south‭

Answer
60%
+1 −0
Challenges Can you give me half?

Fig, 2 unique, 2 total H! Try it online! Halves the negation of the empty string when no input is given.

posted 2y ago by south‭  ·  edited 2y ago by south‭

Answer
60%
+1 −0
Challenges Rationalise recurring binary

Given a potentially recurring binary string, output the number it represents, as a fraction in lowest terms. The notation used in this challenge for recurring digits is non-standard. An r is used ...

0 answers  ·  posted 2y ago by trichoplax‭  ·  edited 1y ago by trichoplax‭

Question code-golf math string parsing binary
60%
+1 −0
Meta Default minimum required precision and supported size for inputs

For challenges that require a input, what is the maximum a solution has to support, if not further specified by the challenge author? Lets say the input is a string, how long a string has to be ac...

0 answers  ·  posted 1y ago by H_H‭  ·  edited 8mo ago by trichoplax‭

Question default-rules discussion
60%
+1 −0
Challenges Single digit Roman numeral

Vyxal, 12 bitsv2, 1.5 or 2 bytes øṘ Try it Online! or Try the entire test suite Bitstring: 000101111100 Very simply a built-in

posted 1y ago by lyxal‭  ·  edited 1y ago by lyxal‭

Answer
60%
+1 −0
Sandbox Is it part of the mandelbrot set? [FINALIZED]

posted 2y ago by H_H‭  ·  edited 2y ago by trichoplax‭

60%
+1 −0
Challenges I irradiate your source code, you irradiate your output

Your task is to write a program $p$ which outputs a string $s$ with the same length as $p$, where $s \neq p$. If I remove the $n$th byte from your program to get program $q$, then either $q$ outpu...

0 answers  ·  posted 1y ago by WheatWizard‭  ·  edited 1y ago by WheatWizard‭

Question radiation-hardening
60%
+1 −0
Challenges Looping counter

C, 30 + 1-4 byte f(m){f(printf("%0*i\n",m,0));} Has this limitations: counter stops working at INT_MAX or at stack overflow. Needs a input value to indicate on which line we start. 0 starts...

posted 2y ago by H_H‭  ·  edited 2y ago by H_H‭

Answer
60%
+1 −0
Sandbox Borromean coprimes [FINALIZED]

posted 1y ago by trichoplax‭  ·  edited 1y ago by trichoplax‭

60%
+1 −0
Challenges Word suggesting

Suggest a word from a word list, given a string. Motivation Imagine typing a word one letter at a time, and seeing a suggested word after each letter is typed. At first the suggested word is simp...

1 answer  ·  posted 2y ago by trichoplax‭  ·  edited 1y ago by trichoplax‭

Question code-golf string list
60%
+1 −0
Challenges Reverse the bits in a Byte

C (gcc), 42 bytes c;f(i){c++<8&&(printf("%d",i&1),f(i>>1));} Try it online! Binary output version.

posted 2y ago by Lundin‭

Answer