Questions tagged [random]
Tasks involving random numbers and/or output.
350
questions
9
votes
18
answers
1k
views
Make a bottom up poem
Based on the "Pretty Ugly" poem.
Input consists of a number of stanzas (positive integer), and four arrays/lists of strings, called the "negatives", "negations", "...
- 191
45
votes
82
answers
5k
views
Print random integers until 0
You are to write a program which generates random integers between \$0\$ and \$99\$ inclusive, outputting each integer in turn, until \$0\$ is generated. You may choose which single-order random ...
- 49.9k
2
votes
17
answers
647
views
Implement Smokey's !!/coffee command. (Part 2)
Like the previous SmokeDetector challenge? This one is for you too ;)
Note: SmokeDetector is a bot that detects spam and offensive posts on the network and posts alerts to chat.
What to implement
...
18
votes
15
answers
2k
views
Implement Smokey's !!/alive command
Note: SmokeDetector is a bot that detects spam and offensive posts on the network and posts alerts to chat.
What to implement
Smokey's !!/alive command uniformly ...
18
votes
23
answers
2k
views
Create an Accurate How-To Article
Here is an easy-intermediate challenge for anyone interested!
What is that?
A thing me and brother do a bit too often is this:
One of us has a problem and asks the other to explain how to do certain ...
- 2,679
31
votes
27
answers
3k
views
Implement the random Fibonacci sequence
The random Fibonacci sequence is defined as follows:
$$
f_n =
\begin{cases}
f_{n-1}+f_{n-2} \text{ with probability } 1/2 \\
f_{n-1}-f_{n-2} \text{ with probability } 1/2 \\
\end{cases}
$$
$$
f_1 = ...
- 49.9k
32
votes
12
answers
2k
views
Implement Entombed's lookup table
Background
Entombed is an Atari 2600 game released in 1982, with the goal of navigating through a continuous mirrored maze as it scrolls upwards. In recent times, the game has been subject to research ...
- 1,656
32
votes
28
answers
3k
views
Implement the Zundoko Kiyoshi function
Background
The Zundoko Kiyoshi function originates from this tweet by kumiromilk. Translated from Japanese, it reads roughly as follows:
The test for my Java lecture had a problem that said "...
- 1,656
7
votes
15
answers
1k
views
Russian Roulette, varying chances [duplicate]
Russian roulette
It's Russian roulette! The rules are simple. Shoot a revolver with n slots for bullets and one round inside at your head and you might not die!
...
- 1,478
2
votes
1
answer
133
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 ...
- 309
25
votes
7
answers
2k
views
Where to point a low-orbit ion cannon (asking for a friend)
Challenge
Premise
Bob lost1 Alice's precious grand piano. Big mistake. Alice has now stolen Bob's low-orbit ion cannon.
Alice refuses to just make up with Bob, so let's help her give him a light ...
18
votes
65
answers
5k
views
Make your code error, but only sometimes!
Your task is to create a program or function which randomly errors. Specifically, there must be a nonzero probability of erroring, but also a nonzero probability of running without error.
An error is ...
- 18.7k
17
votes
7
answers
1k
views
As close to flat as possible
Write a program or function that fulfills the following
Scores less than 101 bytes under normal code-golf rules
Takes no input1 and always outputs a single integer.
Every integer is a possible output....
- 98.5k
4
votes
12
answers
477
views
Creating words by structure
Context
As a conlanger, I am interested in creating a uniform, naturalistic language. One of the tricks is to create vocabulary according to certain structures of words. An example from English: In ...
14
votes
14
answers
2k
views
Simulate a random walk
Context
In this challenge, a random walk is a stochastic process in which a particle at a position with integer coordinates (or a drunk man) moves at each integer time step (that is, at ...
- 14.1k
29
votes
7
answers
7k
views
ASCII Pizza (no pineapple)
I like pizza!
Task
Given the radius of a pizza and a list of ingredients, create the corresponding ascii pizza!
Example size 4 pizza with mozzarella cheese, olives and ham:
...
- 14.1k
12
votes
21
answers
943
views
Write some Random English
Your Goal:
Given an odd integer input n greater than 1, generate a random English word of length n. An English word is one in ...
- 247
1
vote
0
answers
220
views
What does the shortest pseudo-random algorithm look like? [closed]
After seeing some impossibly short solutions in this SE, I began to wonder what code someone could come up with to build a pseudo-random number generator. Now given that I am new to programming, I ...
- 19
18
votes
10
answers
2k
views
Spotify Shuffle (music playlist shuffle algorithm)
Background
Perfect shuffle algorithms like Fisher-Yates shuffle don't produce great results when it comes to music playlist shuffling, because it often produces clusters of songs from the same album. ...
- 76k
14
votes
7
answers
596
views
Make a random drum loop
Do randomly generated drum loops sound good?
A drum loop is a \$5\times 32\$ matrix \$A\$ of \$1\$s and \$0\$s such that
\$A_{1,1}=A_{1,17}=A_{2,9}=A_{2,25}=1\$,
for each \$i\$, the \$i\$th row has ...
- 2,277
16
votes
15
answers
4k
views
Drum fill generator
Create a program that generates a drum fill. Your program will output a pattern of L (left hand hits), 'R' (right hand hits), and ...
- 1,283
32
votes
24
answers
3k
views
Generate a Nine-Ball Pool rack
Introduction
Nine-Ball is a popular pool game played casually and as a competitive sport.
There is one of each numbered ball, with the numbers 1 to 9.
The game starts with all 9 of the balls in a ...
- 517
15
votes
10
answers
2k
views
Random spanning tree of a rectangular grid
Significantly harder version of Spanning tree of a rectangular grid.
Background
A spanning tree (Wikipedia) of an undirected graph is a subgraph that is a tree which includes all of the vertices of ...
- 76k
27
votes
11
answers
1k
views
Random triple with uniform marginals
Output a random triple \$(x,y,z)\$ of real numbers such that
\$x+y+z=\frac{3}{2}\$
Each of \$x,y,z\$, taken alone, is uniformly distributed from \$0\$ to \$1\$.
Please explain in your answer what ...
- 145k
21
votes
11
answers
3k
views
Advent calendar
Let's build an advent Calendar for this Christmas!
Many Advent calendars for children take the form of a large rectangular card with numbered windows for each day of December starting from 1 ( ...
- 10.8k
47
votes
28
answers
4k
views
Simulate reproduction in a population of oozes
Reproductive strategy of oozes can be summarized as follows:
o O 8 oo
A population of oozes at generation N is described by a string, for example:
...
- 13.6k
3
votes
1
answer
425
views
28
votes
33
answers
5k
views
Make a haystack (with a needle)
(Essentially the inverse of Find the needle in the haystack)
Given two tuples, (w, h) and (x, y), generate a haystack composed ...
- 43.4k
29
votes
11
answers
4k
views
Rational Number RNG
The Objective
Build a random number generator whose range is \$\left[0,1\right) \cap \mathbb{Q} .\$
This is, build a random number generator that can produce any value that's:
at least \$0 \,;\$
...
- 5,941
2
votes
15
answers
448
views
type in a random mess of capital letters [duplicate]
SOMe PEOPle lIkE tO TYpE iN A LoGiCAL MAnNER, WITh CapITals aT tHe bEGiNnIng Of ThE SENtENCE and smaLl LETTErS EVeRYWHErE eLsE. NOT Us. NOt Us. Your joB iS to tAkE A SenTEncE Of A
LL SMAlL LeTTeRS, ...
- 45
25
votes
25
answers
4k
views
Fill a bowl with alphabet soup
We seem to never get tired of alphabet-related challenges...
The recipe
Given
a string of letters S, and
two positive integers ...
- 104k
15
votes
13
answers
1k
views
Interpret Volatile
Interpret Volatile
Volatile is a stack-based esolang made by A_/a'_'/A that only has 8 instructions and is turing complete. However, it is also non-deterministic... meaning that programs don't always ...
- 33.3k
44
votes
26
answers
10k
views
Random point on a sphere
The Challenge
Write a program or function that takes no input and outputs a 3-dimensional vector of length \$1\$ in a theoretically uniform random direction.
This is equivalent to a random point on ...
- 7,016
20
votes
15
answers
4k
views
I multiply the source, you (probably) multiply the output!
Task
The task is to write a program that outputs a consistent but otherwise arbitrary positive integer \$x\$ (so strictly greater than 0). Here's the catch: when the source is repeated \$N\$ times (...
- 42.4k
34
votes
36
answers
8k
views
The cat ate your input again!
Create a cat program, a.k.a a program that takes an input and prints it.
...Except, the program will randomly take characters away from your input and print that instead.
Each character in the input ...
- 3,849
25
votes
35
answers
4k
views
Write an interpreter for *
The task is simple. Write an interpreter for the language *.
Here's a bigger link to the wiki.
There are only three valid * programs:
* Prints "Hello World"
<...
- 1,349
17
votes
14
answers
3k
views
Generate a random point outside a given rectangle within a map
Introduction
Given this visualization of a playing field:
...
- 617
11
votes
1
answer
297
views
Compute my Sacred Geometry [closed]
In the tabletop RPG named Pathfinder, there is a feat that characters can take called Sacred Geometry, which allows a character who has it to buff their spells in exchange for doing some math: to use ...
- 211
25
votes
14
answers
3k
views
Do you know your 'KVZ's?
Concept
In what ways can you scramble the English alphabet so that it can still be sung to the tune Twinkle Twinkle Little Star without ruining the tune?
Rules
Swapping
Let's just assume the ...
- 361
30
votes
20
answers
3k
views
Implement Homestuck's Catenative Doomsday Dice Cascader
Challenge
I'm under attack by the larcenous Midnight Crew and I need to summon the Catenative Doomsday Dice Cascader in order to defend myself. Since I'm low on space, I need the code to be as short ...
- 867
27
votes
11
answers
4k
views
Gambler's Fallacy Dice
The gambler's fallacy is a cognitive bias where we mistakenly expect things that have occurred often to be less likely to occur in the future and things that have not occurred in a while to be more ...
- 9,931
17
votes
13
answers
1k
views
Automatically anti-predictably assemble an alliterative aria
Thanks to @ComradeSparklePony for the title.
This challenge should be very simple. You are given three lists.
The first is a list of first names, in title case.
The second is a list of adjectives, ...
- 170k
17
votes
6
answers
2k
views
Generate a Pronounceable Nonsense Word \$n\$ syllables long
Your task is to generate a nonsense word that is reasonably pronounceable with the specified number of 'syllables'. Each time the program is run possibly results in a different nonsense word.
...
- 9,931
36
votes
54
answers
6k
views
Simulating Exploding Dice
Your task is to make a program that takes in an integer n > 1, and outputs the roll of a single n-sided die. However, this ...
- 7,840
31
votes
23
answers
3k
views
Make it rain characters
Inspired by this chat mini-challenge.
Given a string as input (ASCII printable characters only), output the string with the letters "raining" down. Each letter must be a random number of lines ...
- 43.4k
5
votes
18
answers
6k
views
To string or not to string
Given an input string, output at random the unique combinations with repetition of the characters in the input string, from length 1 up to the length of the input string, with an equal chance of each ...
- 101
18
votes
24
answers
6k
views
ssTTsSTtRrriinInnnnNNNIiinngg
Challenge
For each character of the string except for the last one, do the following:
Output the current character.
Followed by randomly outputting from the following list a random number of times ...
- 2,722
11
votes
11
answers
670
views
Generate a Baseball Pitch String
Goal
Write a program or function that takes a positive integer n and randomly generate a legal series of pitches (henceforth called a Pitch string) of length ...
- 4,110
11
votes
8
answers
2k
views
Left Center Right (LCR) code golf
At a party, I was introduced to the game LCR. Now it's not a great game as there's no skill but only random chance. But it got me thinking, I could code this, and I made a quick program in R to model ...
- 611
57
votes
49
answers
11k
views
A game of dice, but avoid number 6
Tournament over!
The tournament is now over! The final simulation was run during the night, a total of \$3*10^8\$ games. The winner is Christian Sievers with his bot OptFor2X. Christian Sievers also ...
- 6,887