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Code-golf is a competition to solve a particular problem in the fewest bytes of source code.
3
votes
Shortest Floor Function
C (80)
Well it's not the shortest, but it's a great opportunity to show off my bit twiddling skills :D.
main(){int I,X=0x7FFFFF;scanf("%f",&I);printf("%d",((I&X)|X+1)>>-(I>>23)+150);}
1
vote
I'm walking around manhattan, how far am I from my hotel?
Matlab, 51 characters
My Matlab submission, works only with captial letters. This was a fun one! The hardest part was converting the string into an array of complex numbers to be summed.
Function:
…
1
vote
Construct a polynomial with given roots
Javascript, 121 bytes
r=>{o=[...r,0].fill(0);for(i=2**r.length;i--;)e=r.length,a=r.reduce((a,q,j)=>a*(i&1<<j?q:(e--,-1)),1),o[e]+=a;return o;}
Explantation
Similar to other answers, we imagine a poly …
12
votes
6
answers
959
views
ASCII-art polygons to GeoJSON coordinates
We're going to turn ascii art versions of polygons into their equivalent GeoJSON.
The ASCII shape language
The input ASCII language only has 3 possible characters:
* signifies a vertex
- signifies a …
53
votes
31
answers
11k
views
Generate a mandelbrot fractal [closed]
Your task is to draw the mandelbrot set in ascii. It should look something like
The complex number c lies in the mandelbrot set, when the sequence z(n+1) = z(n)^2 + c, z(0) = 0 remains bounded.
For …
2
votes
The Caged Circles
Javascript, 199 bytes
My first code golf in a long time!
I originally started with a brute force solution, but couldn't get the step sizes small enough to have it produce the correct answers in a time …
1
vote
Determine whether strings are anagrams
Matlab (24)
Given two strings a and b.
isequal(sort(a),sort(b))
10
votes
2
answers
1k
views
Floating point addition, without floats!
Your task is to write a program, in any language, that adds two floating point numbers together WITHOUT using any fractional or floating point maths. Integer maths is allowed.
Format
The format for …
3
votes
Collatz's ice cream cone factory
HTML + JS, 166 bytes
JS: 156 bytes
HTML: 14 bytes
This is a pretty basic implementation that renders to the DOM using an HTML canvas. A good chunk of the code is spent scaling the output to fit within …