Questions tagged [python]
This challenge is related to the Python language. Note that challenges that require the answers to be in a specific language are generally discouraged.
143 questions
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Golf a number bigger than all other answers [duplicate]
You have to code in python, and the number generated by your code must be bigger than all other current submissions. You need to make your code as small as possible, it has to terminate but you can ...
4
votes
1
answer
121
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Python Buckshot Roulette KOTH
What is Buckshot Roulette?
Buckshot Roulette is an indie game, released by Mike Klubnika to itch.io in 2023.
Okay, but how do you play?
To quote from the wiki:
"At its core, Buckshot Roulette is ...
- 890
0
votes
1
answer
326
views
How can I shorten this Python code from 214 bytes to under 200 bytes? [closed]
I have the following Python code, which is 214 bytes long:
...
- 11
3
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5
answers
408
views
Run a board game tournament
You are in charge of running a board game tournament. Unfortunately, you only have one copy of the game and only so much time, so only a limited number of games can be played. Similarly, you have a ...
- 2,189
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0
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90
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Write a piece of Quine code that can be excuted by both C and Python [duplicate]
Write a piece of code that is compatible with both C and Python compilers/interpreters, which can output its own source code.
Quine is quite easy, but how about this double language version?
Hint:
To ...
0
votes
1
answer
401
views
How can I reduce the characters in the following python code? [closed]
The following code is 47 characters.
print(("Ekki v","V")["COV"in input()]+"eikur!")
How can it be reduced to 46 or less?
I ...
- 41
6
votes
4
answers
638
views
Is there a shortest code to format string
Code Golf Challenge
Given a string of 10 characters:
'abcdefghij'
I want to format it in this pattern and print it in the console in a minimum number of characters:
...
- 63
18
votes
16
answers
3k
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Adversarial Iterated Prisoner's Dilemma
In this challenge, you will play the iterated Prisoner's Dilemma, but with a twist: There's also an adversary trying to mess you up!
The Prisoner's dilemma is a scenario in game theory where there are ...
- 42.3k
8
votes
1
answer
564
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Self-referencing tuple in python
Goal: create a self-referencing tuple satisfying x == (x,) in any version of Python. Standard libraries, matplotlib, numpy, pandas only.
Answers meeting this extra ...
- 191
5
votes
3
answers
529
views
Valid python function invocation signatures
Background
In Python, function arguments are defined within the parentheses following the function name in the function definition. There are different ways to present function arguments, and they can ...
- 181
-3
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1
answer
591
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What is the ABSOLUTE shortest way to write this code?
So I got kinda bored and was wondering if it was possible to make this code shorter without modifying anything except a file named coin.py...
...
- 121
17
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19
answers
6k
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The Dating Game / Secretary Problem
The bots are looking for love. Can you help them?
The rules
The goal of this game is find the bot you have the highest compatibility with. However, robots, who are inexperienced at dating are unable ...
- 14.4k
6
votes
2
answers
451
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Shortening this Code to process nested tuple even further without the use of max()
I have the code:
...
- 163
27
votes
14
answers
3k
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Is this series of quotes valid Python?
Python string parsing has quite a few edge cases. This is a string:
"a"
Putting 2 strings immediately after each other implicitly concatenates them, so ...
- 14.4k
9
votes
2
answers
692
views
Inverting string-based binary number in one line in Python
I want to read two strings on separate lines, each string the same length and containing only 0's and 1's, and determine if the first is the one's complement of the second. How succinctly can this be ...
- 191
4
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3
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1k
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Python: can I shorten this code further for checking substrings
So the golf question was like this:
You are given a number T and then a total of T number of 17-character strings. For each of ...
- 133
14
votes
16
answers
3k
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Speed up, slowpoke!
In this king-of-the-hill challenge, you will program a bot, consisting of a python function of the form
def BOTNAME(info, me, round):
pass # ... main body
...
- 1,693
-6
votes
2
answers
373
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King of the Hill: Greed Control [duplicate]
King of the Hill: Greed Control
What is Greed Control
Greed control is a multiplayer round-based game
in which in every round, a player bet a number inside
a ...
- 2,004
8
votes
2
answers
354
views
How to shorten Python code involving the sum of reciprocals?
I have a coding problem that goes like this:
Given a positive integer \$N\$, return a list of all possible pairs of positive integers \$(x,y)\$ such that $$\frac1x+\frac1y=\frac1N$$
I already solved ...
- 14.6k
-11
votes
1
answer
400
views
The right way to return [[0, 0, 0], [0, 1, 0], [0, 0, 0]] [closed]
Here is the program to return [[0, 0, 0], [0, 1, 0], [0, 0, 0]]
[[0]*3,[0,1,0],[0]*3]
Try it online!
Can you shorten this code?...
- 5,085
9
votes
2
answers
983
views
Can I shorten this Python code for simulating a car driving around
I am trying to write a solution to the following problem using as few characters as possible (to meme my friend and introduce him to golfing). Can any improvements be done to my code?
So the problem ...
- 133
3
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3
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805
views
9
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4
answers
3k
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How to shorten the python code?
I'm writing a program that takes a number from input (call it x), loops from 0 to (x - 1) (let's call our iterator y) and prints \$y^x+x\$ for each y.
After the loop, it then prints "SUM: N" ...
- 5,085
20
votes
1
answer
805
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How to solve the LCM in 50 bytes of Python
I've recently stumbled upon a Russian site called acmp.ru, in which one of the tasks, HOK, asks us to find the LCM of two positive integers. The full statement, translated to English is as follows:
...
- 23.4k
6
votes
2
answers
476
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Pushing the limits to make a piece of code solving the K-Goodness String problem shorter
I am trying to push my limits of making a python code as short as possible.
I left the readability part way behind.
I was attempting the K-Goodness String problem from Round A of Google Kick Start ...
- 161
-3
votes
1
answer
456
views
Shortest way to convert a float to an int [closed]
I'm not really sure if this is the right place to ask this.
Now, I know I can convert a float to an int with int, but is there some shorter way?
- 4,279
4
votes
2
answers
1k
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Write an infinitely nested generator comprehension
The goal is to create a generator generator [...] generator generator comprehension.
The generator must be created via generator comprehension.
The following expression must be valid for any number ...
- 163
7
votes
4
answers
1k
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Bigram frequencies in text
Introduction
This challenge is about producing a code to count the frequency of bigrams in a text. A bigram is two consecutive letters in a text. For instance 'aabbcd' contains the bigrams aa, ab, bb, ...
- 179
9
votes
2
answers
4k
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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 ...
- 573
5
votes
1
answer
385
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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 ...
- 51
8
votes
6
answers
798
views
KotH - Floating Point Prisoners Dilemma
Background
So, nowadays the popular Prisoner's Dilemma variant is the Prisoner's Trilemma, where there are three options. I can easily see that being increased, so I figured
Why settle for three ...
- 189
12
votes
16
answers
2k
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Random Prisoner's Trilemma - Python 3 KOTH
The Prisoner's Dilemma, but with 3 choices, and the payoffs are random!
Each round, your bot recieves a 3x3 grid and chooses a row to play. The grid might be this:
...
- 2,189
6
votes
6
answers
1k
views
Let's play Judgement!
In this king-of-the-hill challenge, you will be making a python 3 bot to play the card game judgement!
Sandbox
Rules
Judgement is a hand based game similar to games like rummy. In each round,
7 cards ...
- 2,635
22
votes
9
answers
4k
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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 ...
- 323
8
votes
1
answer
438
views
I'm Jelly of Python (Robbers)
What does "jelly" mean in the title?. Cop's thread
Robbers, you are to choose an uncracked Cop answer, and attempt to find a Jelly program which is:
shorter than the Cop's answer
solves the ...
- 50.9k
12
votes
3
answers
1k
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I'm Jelly of Python (Cops)
What does "jelly" mean in the title?. Robber's thread
Jelly has an "Evaluate the argument as Python 3" atom, ŒV which takes a string as an ...
- 50.9k
16
votes
17
answers
1k
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Liars and Guessers
Github
You have probably played, and may even have written a program to play, a simple number guessing game. If so, this probably looks familiar:
...
- 843
-5
votes
1
answer
296
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Python Prime Problem [duplicate]
Your challenge is to write a Python program to print all the primes (separated by whitespace) less than a given integer N with an asterisk (...
- 459
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votes
1
answer
214
views
No. Of Factors Does the Number Have [duplicate]
Create a function which takes in a input integer and then returns the number of factors it has, like if you pass 25 then it will return ...
- 165
2
votes
0
answers
237
views
Using subscription for the iteration variable in Python for loop [closed]
I just realized that Python allows more than names as for loop iteration variables:
for a[i] in sequence:
pass
The real fun ...
- 129
3
votes
2
answers
667
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?
...
- 567
43
votes
17
answers
7k
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-...
- 103k
1
vote
2
answers
850
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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 ...
- 333
4
votes
2
answers
1k
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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 ...
- 333
16
votes
8
answers
1k
views
Omit needless spaces for me
A great Python golfing tip is to omit needless spaces. But if you are like me, you don't always have the time to search for which spaces to remove. If only there was a way to speed up the process...
...
- 23.4k
12
votes
3
answers
2k
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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 ...
- 123
4
votes
2
answers
3k
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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 ...
- 151
4
votes
1
answer
803
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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?
...
- 283
11
votes
3
answers
859
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Decode ascii and reversed words sentence
In a challenge of CodingGame, there is a challenge that ask you to decode a string composed by reversed words ('Hello world' > 'olleH dlrow') then each characters converted into ascii value separeted ...
- 283
15
votes
12
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1k
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The Celestial Bureaucracy KoTH
In Imperial China, ranks in society were not decided by birth or wealth, but by a person's ability to excel in the Imperial Examinations. The Jade Emperor, divine ruler of the Heavens, has called for ...
- 558