Tips for either golfing or programming challenges. In most current cases it is for helpful tips and tricks how one could golf more effectively with a particular language.

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-1
votes
0answers
14 views

Help with shortening this Haskell combinations snipped [migrated]

I was happy with my shell script that needed to generate alphanumeric combinations of length N (in this case, 3) for i in {a..z}{a..z}{a..z}; do ... Now I became less happy when I needed ...
8
votes
4answers
209 views

Tips for golfing in LOLCODE

What general tips do you have for golfing in LOLCODE? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to LOLCODE. (e.g. "remove comments" ...
0
votes
1answer
51 views

Tips for golfing in Befunge 93 [duplicate]

What general tips do you have for golfing in Befunge 93? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Befunge 93 (e.g. "remove ...
-1
votes
0answers
51 views

Is it possible to reduce this code? [duplicate]

I need to reduce the length of this code in Python3: (even by 2 or 3 chars) a,b,x,y=map(int,input().split()) while 1:c=(y>b)-(y<b);d=(x>a)-(x<a);print((' NS'[c]+' ...
1
vote
1answer
76 views

How can I use cmp(a,b) with Python3?

I want to compare a and b. How can I use cmp(a,b) with Python3 ?
5
votes
4answers
358 views

How could I reduce the length of this code?

I need to reduce the length of this code in Python 3 as much as possible (even if it will be less readable): a,b,x,y=[int(i) for i in input().split()] while 1: r='' if y<b:r='S';y+=1 if ...
9
votes
1answer
248 views

Concatenate lists of strings item-wise in Python

This is a tips question for golfing in python. Suppose you have two lists of strings, and you want to concatenate the corresponding entries from each list. E.g. with a=list("abcd") and ...
-1
votes
1answer
91 views

How can I rename .split or .join in python? [duplicate]

I can rename a built in module like this: r=range list(range(10)) [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] but whenever I rename .split, I get an error: s=split NameError: name 'split' is not defined How ...
6
votes
3answers
459 views

Leibniz golf in C#

I'm starting with golf code. But im only do C# so I know wont be a breaking record, but I want give it a try. Leibniz Challenge is here The first line contains the number of test cases (N) which is ...
5
votes
4answers
123 views

Tips for golfing in Element

Since my use of Element has increased recently, I am interested in tips for golfing programs written in it. What general tips do you have for golfing in Element? I'm looking for ideas that can be ...
10
votes
2answers
209 views

Tips for golfing in The Shakespeare Programming Language

What general tips do you have for golfing in The Shakespeare Programming Language? I'm looking for ideas which can be applied to code-golf problems and which are also at least somewhat specific to SPL ...
6
votes
2answers
186 views

Tips for golfing in whitespace

What general tips do you have for golfing in Whitespace? I'm looking for ideas which can be applied to code-golf problems and which are also at least somewhat specific to Whitespace (e.g. "remove ...
16
votes
3answers
2k views

Is there a shorter way to assign one of two variables in Python?

This is a tips question for golfing in python. In multiple golfs I've done in Python, a fixed value is assigned to one of two variables chosen by a Boolean. The chosen variable is overwritten by the ...
24
votes
14answers
3k views

Tips for Regex Golf

Similar to our threads for language-specific golfing tips: what are general tricks to shorten regular expressions? I can see three uses of regex when it comes to golfing: classic regex golf ("here ...
11
votes
1answer
1k views

Am I code-golfing properly?

I am curious if I am Code Golfing properly. I set the challenge for myself to make a small hashing program into a single statement in Python. I first started off with: from itertools import ...
6
votes
3answers
722 views

Tips for golfing in ><> (Fish)

Since I've been seeing more ><> submissions floating around lately, I thought it might be a good idea to have a tips page. Please stick to one tip per post, unless they are closely related. ...
8
votes
1answer
1k views

Python 3 - Tried Golfing My Assignment

Note: This isn't as much a golfing challenge; it is more so asking for golfing suggestions. Recently I had a Python assignment for my web development class, in order to check whether we could code. ...
1
vote
2answers
190 views

Code Golf: Leibniz Series

This is the same question as Solve the CodeSprint4 Leibniz code golf challenge in Python in 66 characters. The variation is that I'm a C programmer. My code for the above question is: #include ...
5
votes
2answers
269 views

C golfing tips - returning 0 without return statement

I'm looking for some solution in returning values in main function, I need to shorten my program more, return 0 takes too much characters of my code, I need to return 0, or my code fails. I know that ...
0
votes
1answer
180 views

Books Algorithm Dealing with Square Digit Sums

A little context: Book has 411 Pages Read a random number of pages on the first day which is unknown Number of pages to read next day is the square of the sum of the digits of the page ...
8
votes
5answers
1k views

All primes from 0 to 1000

Is it possible to make this C code smaller? It prints out all primes from 0 to 1000. C, 89 chars int i,p,c;for(i=2;i<1e3;i++){c=0;for(p=2;p<i;p++)if(i%p==0)c++;if(c==0)printf("%u\n",i);}
4
votes
6answers
1k views

Print all odd numbers from 0 to 100000

My teacher gave me a simple problem which I should solve with a code tiny as possible. I should print all odd numbers from 0 to 100000 into a HTML document using javascript. for(var y = 0; y < ...
3
votes
2answers
440 views

Shortest Code to Translate a PHP array

NOTE: This question was migrated from http://stackoverflow.com/q/27134588/1442685 PHP QUESTION Almost purely out of curiousity, how can I take an array like this: array( 'fruit' => 'banana', ...
8
votes
0answers
134 views

Tips for Golfing in Go

What general tips do you have for golfing in Go? I'm new to Code Golfing and looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Go. Idea ...
6
votes
3answers
371 views

Looking for shorter alternatives to `range(…)`

The best solution I've found so far for a golf code puzzle I'm working on includes two rather fat-looking invocations of range. I'm very new at code golf, especially in Python, so I could use a few ...
12
votes
1answer
187 views

Python advice: Portability of introspective function call

In Python, you can use the dir function on any object to get a list of the names of its instance functions: >>> dir('abc') ['__add__', '__class__', '__contains__', '__delattr__', '__doc__', ...
0
votes
4answers
425 views

JavaScript: Tricks to shorten onkeydown, setInterval etc

Are there any tricks to shorten defined function names like setInterval, onkeydown, onkeyup, createLinearGradient or even return? When using it more than once it's nice to put it as a string into a ...
16
votes
16answers
2k views

Tips for golfing in Pyth

Pyth is a Python-inspired procedural programming language, created by PPCG user isaacg. What general tips do you have for golfing in Pyth? I'm looking for ideas that can be applied to code golf ...
1
vote
4answers
129 views

Tips for Golfing in BBC BASIC

What general tips do you have for golfing in BBC BASIC? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to BBC BASIC (e.g. "remove ...
4
votes
1answer
341 views

Javascript: Mini Space Invaders

I'm pretty new to code golfing, so I gave one of my first shots to a space invader clone called "Invas!on". It's a little less than 500 bytes, fully ASCII generated, and covers moving around and ...
4
votes
0answers
162 views

How to golf string output in Chef

I'm attempting to solve a programming golf style programming puzzle. I need to write an 18 character phrase in Chef in less than 32 "lines" of code. In this case, a line counts as an ingredient or an ...
14
votes
14answers
914 views

Tips for golfing in CJam

CJam is a GolfScript-inspired stack-based golfing language, created by PPCG user aditsu. So, in the vein of other language-specific tips questions: What general tips do you have for golfing in CJam? ...
3
votes
1answer
307 views

multiplication table in javascript [duplicate]

This javascript code: for(x=1;x<6;x++)for(y=1;y<6;y++)console.log((y==1?'\n':'')+x+'*'+y+'='+x*y); prints the following: 1*1=1 1*2=2 1*3=3 1*4=4 1*5=5 2*1=2 2*2=4 2*3=6 2*4=8 2*5=10 3*1=3 ...
8
votes
1answer
225 views

Golfscript Diagonal Array

Is there a way in Golfscript to bring all of the diagonals of an array into a single array? For example, for the array [[1 2 3][4 5 6][7 8 9]] return [[7][4 8][1 5 9][2 6][3]] (not necessarily ...
6
votes
5answers
429 views

Tips for golfing in Applescript

What tips do you have for golfing in Applescript? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Applescript (e.g. "remove comments" ...
20
votes
6answers
482 views

Tips for Golfing in ECMAScript 6

This is similar to other "Tips for golfing in <...>" but specifically targeting the ECMAScript 6 features in JavaScript. JavaScript inherently is a very verbose language, function(){}, .forEach(), ...
4
votes
0answers
120 views

Tips for golfing in OCaml

Inspired from the assortment of other 'Tips for golfing in language xyz'. As usual, please only suggest tips that are specific to OCaml and not programming in general. One tip per answer please.
0
votes
0answers
386 views

Is this the shortest possible Java quine? [duplicate]

Long ago, I found a Java quine online which uses a number of very clever tricks of the Java language (you can compile this at the command line, but it will not compile in most compilers--for obvious ...
10
votes
13answers
12k views

Smallest python script to print even numbers 0 to 100

I'm work on a problem which I set myself for fun, which is to create a python script which prints the even numbers from 0 to 100. The challenge is to make the script as small as possible. This is what ...
8
votes
1answer
789 views

Palindromic prime

I'm solving task, where: Input: A number as an integer. Output: The closest greater palindromic prime as an integer. I would appreciate hints how to make my solution shorter. Or directions if ...
6
votes
4answers
912 views

Tips for Golfing in T-SQL?

What general tips do you have for golfing in T-SQL? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to T-SQL. Please post one tip per ...
1
vote
3answers
1k views

Check If Two or More Variables Are All Equal to Zero in JavaScript

What is the shortest way to check if two or more variables are equal to 0 in JavaScript? I'm curious to know if there's something shorter than if(!x&&!y&&!z){...}.
14
votes
6answers
636 views

Alias Member Functions in Python

In Python, one can save bytes by aliasing functions that are used repeatedly. For example: r=range a=r(100) b=r(200) c=r(300) However, when the functions are member functions together, I don't know ...
5
votes
2answers
211 views

Tips for golfing in Processing

Does anyone have any code-golf tips for golfing in Processing? It is a graphical extension of java, and is somewhat difficult to golf.
2
votes
8answers
273 views

Tips for golfing in LiveScript

What general tips do you have for golfing in LiveScript? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to LiveScript (e.g. "remove ...
9
votes
2answers
733 views

X greater than 3 with at least 2 difference between X and Y

I am trying to golf down some C++. Is it possible to make this condition shorter? X > 3 & X - Y > 1 (Apart from removing whitespace, of course.) So, X is at least 4 but X >= Y + 2. X ...
6
votes
4answers
379 views

Tips for golfing in Julia

What general tips do you have for golfing in Julia? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Julia (e.g. "remove comments" is ...
11
votes
4answers
445 views

Tips for golfing in Lua

What general tips do you have for golfing in Lua? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Lua (e.g. "remove comments" is not ...
0
votes
0answers
226 views

Visual Studio settings for C# code golfing

Which setting in Visual Studio do you recommend to get the best experience for code-golf? Advanced: how to best apply these settings only temporarily (because I should also do some work with Visual ...
3
votes
2answers
269 views

Tips for golfing ASCII art

I think the ASCII art questions on Code Golf are fun to do but personally I think it can be pretty hard. Especially when the question is tagged as code-golf. I wonder if anyone here might have some ...