Questions tagged [tips]
For questions asking for tips on golfing in a specific language, doing well in certain challenge tag, or improving a particular piece of code.
312
questions
5
votes
1answer
381 views
Tuple Assignment in Pyth
I was wondering if there is any way to assign 2 values (G and H) to say a list of ["egg", "chicken"] in Pyth. In python it would be something along the lines of
...
7
votes
6answers
211 views
Tips for golfing in jq
Since jq is the Language Of The Month for September 2021, what general tips do you have for golfing in jq? I'm looking for ideas which can be applied to code-golf problems and which are also at least ...
2
votes
0answers
123 views
Tips for Golfing the Lambda Calculus & Friends
This includes tips for all related derivatives, as coding in these langs often primarily consists of writing the function in the lambda calculus and then compiling it down at the end.
Among others, ...
13
votes
1answer
911 views
How to golf a fork in Haskell?
I'm trying to make a pointfree function f that can act like APL's dyadic forks/Husk's §, so ...
6
votes
2answers
703 views
How to ignore first user input in Python 3
I have 2 inputs: 1 single number and some numbers separated by whitespace:
1
1 2 3 4 5
I want to loop over the second input, and I don't need the first input. I ...
8
votes
3answers
182 views
Tips for Golfing in ARM
Because ARM is the July 2021 LoTM, I figured I'd create the tips thread.
ARM is probably the most successful architecture for the digital world. From mobile phones to supercomputers, ARM is everywhere!...
5
votes
1answer
150 views
Tips on golfing this Python program to generate a palindrome from a string
I wrote this function in 48 bytes and I wonder, is there any way to write this code 2 characters shorter?
p=lambda n,c:(n*c)[:n//2]+(n*c)[:n//2+n%2][::-1]
The ...
15
votes
8answers
1k views
Tips for Code Golfing in Desmos
Desmos is mainly used as an online graphing calculator, but its graphical and mathematical functionalities can also be applied in certain coding challenges.
I know not that many people use Desmos on ...
6
votes
8answers
201 views
Tips for golfing in Z80 or SM83 machine code
There's only one question for machine-language golfing, and it's for the ia32 and amd64 architectures. Here's one for a predecessor of them: the Zilog Z80!
The ISA is available here.
As usual, if your ...
8
votes
9answers
250 views
Tips for golfing in Red
As the June 2021 Language of the Month is Red, what are some general tips for golfing in Red language?
Please suggest tips that are at least somewhat specific to Red (e.g. "remove comments" ...
3
votes
2answers
128 views
Tips for code golfing in Vlang
What tips do you have for code-golfing in the V lang? I have been trying to find ways to shorten codegolfs on there but can't find any resources on it. Do you guys have any?
Please suggest tips that ...
11
votes
1answer
268 views
Tips for golfing a fibonacci sequence generator
One day in July 2020, I made the following C program:
...
1
vote
0answers
63 views
System-defined short forms for function-option combinations in Mathematica? [closed]
Several Mathematica functions have system-defined short forms, e.g., /@ for Map. Many of them are listed here: https://reference.wolfram.com/language/tutorial/OperatorInputForms.html
However, there ...
2
votes
3answers
518 views
Programming Less-Than, Greater-Than and Equal-To functions using Restricted Source [closed]
I'm currently working with a branchless language which does not have native Less-Than, Greater-Than or Equal-To functions. I do however have min, ...
21
votes
9answers
3k views
How can this code be more "golfed"?
I'm not sure if this is the right place to ask, but I found this similar question so I'll go ahead.
I'm very new to code golfing, so keep your smothered laughs and throw-up emoji's to yourselves ...
7
votes
1answer
185 views
Tips for golfing in Binary Lambda Calculus
BLC (Binary Lambda Calculus) is a binary encoding of untyped lambda calculus which was created to “provide a very simple and elegant concrete definition of descriptional complexity.”
What are some ...
12
votes
10answers
422 views
Tips for Golfing in Vyxal
Vyxal is a golfing language that has 500+ different commands (achieved through overloads), and is a known beater of Jelly, 05AB1E and most golfing languages.
Henceforth, it seems like a good idea to ...
15
votes
3answers
1k views
Display 0 - 1000 - 0 each on a separate line
I've tried this question on two forums and have been told this is the best place for this type of question. I'm trying to print from 0 to 1000 then back to 0 again (and all numbers in-between), ...
5
votes
3answers
225 views
Tips for restricted source in Powershell
Adapted from Tips for restricted source in Python
Just like code-golf, restricted-source pushes one to exploit quirks and hidden features of the Powershell language. Now, We already have a place to ...
10
votes
5answers
235 views
Tips for restricted source in zsh
Adapted from tips for restricted-source in Python
Just like code-golf, restricted-source pushes one to exploit quirks and hidden features of the zsh language. While we already have a place to collect ...
2
votes
6answers
250 views
Maximum distance to station
Looking at the following hackerrank problem:
https://www.hackerrank.com/challenges/flatland-space-stations
You are given a number n where cities can be at indices 0 to n-1 and also given an unsorted ...
5
votes
2answers
233 views
Tips for golfing in Whispers
Whispers is February 2021's Language of the Month, so what tips do you have for golfing in it? Tips do not have to be specific to code-golf, so long as they apply to other types of challenges on the ...
7
votes
1answer
248 views
Generating versions of an array with elements changed in ruby
I'm new to code golf challenges. My problem came up in Advent of Code 2020 Day 8
The input is an array of arrays. In part two of the problem one needs to run several trials to produce a result by ...
12
votes
3answers
689 views
How to golf evaluation of math expression in MySQL?
The challenge given to me is comparatively easy, and specific to MySQL only. I'm given a table expressions which have mathematical calculations done by a kid. ...
1
vote
0answers
131 views
Printing Hello World using fewest characters [duplicate]
I saw a problem which asks you to print "Hello World" using the fewest characters, including spaces. How can I further shorten this code? Thank you in advance!
...
7
votes
1answer
336 views
How to golf wrap-around assignments?
This is a relatively simple question. I'm trying to golf a Snake game I've written, and I'm trying to work out if there's a way to golf the following conditional assignments which control x and y ...
14
votes
2answers
659 views
Tips for restricted source in Haskell
I tested the waters on this sort of question with python, but now I get to the real question I want to ask.
restricted-source challenges are uniquely rewarding in Haskell because of Haskell's strict ...
5
votes
7answers
339 views
Tips for golfing in Scala 3
What general tips do you have for golfing in Scala 3? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Scala 3 (e.g. "remove ...
14
votes
8answers
856 views
Tips for golfing in Pip
Pip is an imperative golfing language with infix operators. It also borrows some features from functional and array programming.
What general tips do you have for golfing in Pip? I'm looking for ...
3
votes
1answer
302 views
Remove duplicates from list and order it by count? (python 3)
How do I remove all duplicates from list and order it based on count?
...
40
votes
16answers
5k views
Tips for restricted source in Python
Just like code-golf, restricted-source pushes one to exploit quirks and hidden features of the Python language. We already have a place to collect all these tips for code-golf, those for restricted-...
3
votes
1answer
386 views
Redirect HTTP links to HTTPS with Javascript
What is the shortest way to secure a site with Javascript?
I am new to Code Golfing, and this is what I've come up with so far. I bet that this could be improved though:
Challenge:
Make a script ...
4
votes
1answer
160 views
Which languages are optimal for problems that require "reading" input while also writing to it like a stack
When encountering a problem whose input is meant to be read sequentially, but you may also want to push back onto the input like a stack, which languages have the optimal boilerplates for doing so, ...
1
vote
2answers
651 views
Shortest Python 3 for sum of arithmetic progression
Input: from STDIN number of vertices in Graph \$2 \leq N \leq 100\$.
Rules: [Code size] = max ([code length without spaces, tabs and newlines], [total code length divided by 4])
Math formulation: In ...
4
votes
2answers
1k views
Shortest python3 code for: Find the difference between a number and a power of two not exceeding a given number
So, this is a task from one very popular educational site in Russia:
https://acmp.ru/index.asp?main=task&id_task=786&ins=1
Mathematically, you need to find the power of two not exceeding the ...
0
votes
6answers
587 views
LeetCode 552: Student Attendance Record II
I'm posting my code for a LeetCode problem copied here. If you have time and would like to golf for a short solution, please do so.
Requirement
It has to only pass the LeetCode's Online Judge, if the ...
2
votes
2answers
266 views
Is there a language that supports Turing machines? [closed]
Is there a programming language that supports single tape Turing machines specified in some format?
I am aware multiple formats for expressing them exist, but is there a standard one using which an ...
6
votes
1answer
1k views
Resource for generating shortest regex given a list of strings
I'm looking for a program such that, given a finite list of strings, can find short regexes to match exactly all of them and nothing else.
Since there are multiple languages that express regexes ...
0
votes
1answer
226 views
List of programming languages that can run code at runtime [closed]
What all languages have a construct similar to python's eval, so you can write code during runtime and run it?
A list would be helpful for certain programming ...
8
votes
1answer
244 views
Multiplication algorithm on a 4004
So I was playing around with this emulator of the Intel 4004 and decided I wanted to set a challenge for myself. The first use for the 4004 was in a calculator, so I decided that I would try to code ...
2
votes
1answer
120 views
Code golfing my guess the number game with feedback in NS-HUBASIC - Can it be code golfed any further?
The player has to keep guessing a number from 1 to 10 until they guess the correct number to win the game. If they make an incorrect guess, they're told if their guess was too low or too high.
Each ...
2
votes
1answer
155 views
Tips for Golfing in Symja
Symja is a "computer algebra language & Java symbolic math library for Android NCalc calculator". It's a fun little language, so I'm wondering if y'all have any tips for golfing in Symja.
As per ...
4
votes
2answers
119 views
Tips for golfing in Pure Data
Pure data is a graphical programming language designed for audio processing. This makes it unsuitable for most general programming but especially unsuitable for code-golf.
It would then be nice to ...
4
votes
1answer
252 views
Best free online resources to learn competitive programming [closed]
I am quite proficient in C++ and Java and want to learn competitive programming to participate in contests like Google codejam and other online contests held on sites like CodeChef and Codeforces. I ...
3
votes
1answer
186 views
Summing intertwined terms of an array
I'm recieving 2-dimensional positions of two objects as a string with this format: x1,y1,x2,y2. The string is recieved from a ...
12
votes
3answers
2k views
Intersection of circles – How can I reduce this golf code to 127 bytes?
I started a CodeWars kata in Python, just two days ago, related to code golf.
Task: Given two congruent circles a and b of radius r, return the area of their intersection rounded down to the nearest ...
41
votes
8answers
3k views
Tips for Creating/Maintaining a Golfing Language
Creating a golfing language can be hard. Let's help budding golfing language creators out and provide some helpful tips on how to create one.
I'm looking for tips on:
The design process
...
4
votes
2answers
3k views
Shortest Solution in Python 3 for Caught Speeding - CodingBat
I am trying to find the shortest code in python 3, to solve this problem:
You are driving a little too fast, and a police officer stops you.
Write code to take two integer inputs, first one ...
4
votes
1answer
379 views
From text to ascii art from CodinGame practice puzzle
On CodingGame, there is a Puzzle that ask to write words with ascii art.
I solve the puzzle then tried to golf it. What improvement can I do on it?
...
7
votes
2answers
244 views
Is there a shorter way to express this haskell idiom?
Every so often I have a function of type a -> b and a function of type b -> b -> c and I would like a function of type <...