Questions tagged [random]
This tag is for questions pertaining to random numbers, whether pseudo random or truly random.
798
questions
2
votes
1
answer
74
views
4
votes
1
answer
333
views
Porting xoroshiro1024** from C to C#, and seeding it
I require a PRNG which:
Has repeatable results from a given state.
Is both seeded from and has a state containing a sufficiently large amount of data (somewhere in the region of 700 bits or more) to ...
- 141
4
votes
2
answers
318
views
Making a dice game as my first Python project!
I just started my programming lessons in school today and I decided to start learning more at home. This is my first day and I know the basics of if conditions, <...
- 41
4
votes
4
answers
895
views
Lottery Analysis (Python Crash Course, exercise 9-15)
I was working on Python Crash Course, exercise 9-15: 'Lottery Analysis'. It took me a very long time to get it to work. The reason it took that long is I wanted to use my existing class from the ...
- 43
2
votes
0
answers
129
views
Truly cryptographically secure password generator in Python, version 2
Following suggestions from answers from my previous question, I have completely rewrote my script, to make it more concise and Pythonic, truly cryptographically secure, and added more functionality.
...
- 3,014
10
votes
3
answers
2k
views
Python command-line program that generates passwords
I took my code from this answer by me, I found it useful, so I developed it further, and here is the result.
This script generates cryptographically secure passwords. The characters used by the ...
- 3,014
10
votes
3
answers
3k
views
Python \ random password generation code
I have written a python program for random password generation and as a newbie I would like my code to be reviewed by professionals and if they have any suggestions to improve it.
...
- 103
3
votes
1
answer
122
views
JavaScript seedable Math.random
I made an implementation of xoshiro256** in JavaScript, using BigInts. It's designed to mimic Math.random. Any feedback on the code quality?
...
- 101
9
votes
2
answers
777
views
Simulation of hero vs monster
I fairly started coding no more than 2 weeks now; not even for long, and a thread inspired me to make a random back-to-forth game between a Hero and a Monster where it randomly choose a certain number ...
- 91
0
votes
1
answer
368
views
Random Name Selection from a "Hat" in Python
Background/context: This program randomly selects predefined items ("Names" as strings) according to 2 rules:
#Rule 1: Each name/item in the list can only be selected once.
#Rule 2: Single ...
- 103
2
votes
2
answers
82
views
Return a random integer with a probability progression
A function random_int_with_probability that returns a random number within a range, where the chance to get a bigger value decreases linearly towards the maxima.
In ...
- 1,548
1
vote
2
answers
68
views
Create a random list of values with corresponding tokens
I have this code that uses loops and random generators to create a random list of values (operators, strings, integers, floats, and new lines) and a corresponding list of the correct tokens to test a ...
- 111
2
votes
1
answer
145
views
12
votes
2
answers
6k
views
Laughably tiny random engine
I devised a tiny pseudo-random engine and I wondered if it would be considered decent or even good.
It is based on a SHA256 implementation and uses a single 32-bytes state variable.
On seeding, the ...
- 223
4
votes
1
answer
71
views
Piece-wise radial uniformly random distribution of points around a reference point
I have been learning Asymptote, which is a vector graphics programming language. In addition to its nice integration with LaTeX and friends, it is capable of generating 3D rendered artworks. For a ...
user265453
2
votes
1
answer
215
views
Pick two random cards from a standard deck
I wrote this code as a refactor of code I saw on Programiz. I thought about this refactor before going to bed and implemented it successfully in code.
...
- 23
5
votes
1
answer
230
views
blackjack dealer hand generator
I wrote a piece of blackjack code - for dealer dealing cards to himself (python). My question is how can I make it more efficient, faster and neater. I ran it for 1.000.000 iterations and it took 14.7 ...
4
votes
2
answers
721
views
generate lottery numbers to store in a text file
I scripted a program in python to generate lottery numbers for user. There are two playing methods:
Lotto6aus49: User can choose any 6 numbers out of 49.
Eurojackpot: User can choose 5 numbers out of ...
2
votes
3
answers
548
views
Create different groups of students for a number of assignments [closed]
How can I make the code easy?
The function which was developed contains the following inputs:
students: a list with names of students
events: an integer specifying how many group assignments should ...
- 57
4
votes
1
answer
60
views
Generating a randomized JSON for testing RabbitMQ
The following code will be used to generate a random json object to be used as a RabbitMQ message body. The code works but I'm sure it can be improved in ways that I am not seeing, as I am a novice.
...
- 41
17
votes
4
answers
4k
views
Python program to scramble MP3 audio
I'm super new to coding. I had a random idea in the car to make this application in order dive head first into learning to code.
This is an app to take an MP3 file, "shred it" into pieces (...
- 171
2
votes
1
answer
257
views
Simple ID Generator
Task
Write a program that can generate and manage collections of IDs. The user should determine how long the IDs have to be and what symbols they are composed of.
Design choices made by me
The ...
- 2,154
1
vote
1
answer
327
views
Generate random int based on a 32 characters long string seed
I want to generate a random seed based on a string value (which is ~32 characters long).
I don't want to use string.GetHashCode() since I may later will need a ...
- 113
0
votes
3
answers
112
views
A more elegant way to uniformly sample from non-negative integers with a fixed sum
Given a positive integer n, I would like to randomly output n non negative integers that sum to ...
- 191
2
votes
2
answers
90
views
Sampling from k circles with different radii
Description: I would like to sample n_points points from k circles whose radii and centers are given as lists.
Note: This is my ...
- 121
1
vote
2
answers
91
views
Generating random integers in one of three ranges
I have a function returns a random integer number. This function only accepts these three numbers 1,2 and 3(there's another function in my code which is make sure of this otherwise that function will ...
- 13
8
votes
5
answers
3k
views
Simple Python code that makes a random string of letters and numbers
My code basically picks random letters and numbers from three lists and makes a random combination with them. I decided to write this code just for fun, however I feel like the code can be made ...
- 83
3
votes
2
answers
234
views
Cryptographically secure version of the core array_rand() function
I want a cryptographically secure version of array_rand(). Is this it?
...
- 409
5
votes
2
answers
667
views
Truth or dare program in java
I wrote this code in Java as a "Truth or Dare" game where if you type "truth" or "dare", it will pick a random number from the switch and then output the truth question ...
- 63
3
votes
1
answer
184
views
Randomly set styles with JavaScript
I have created a function which randomly sets styles using CSS selectors. Right now it returns a random item from an array. The program also works with shorthand properties (such as ...
- 109
5
votes
4
answers
2k
views
Coin flip streaks in Python
Below is the wording from the problem in Automate the Boring Stuff book. The bold text leads me to believe that I should be checking for a streak and not multiple streaks within each experiment of 100 ...
- 51
-1
votes
1
answer
66
views
Quantum Random Generator outputs pieces of PI [closed]
This is a curiosity as a follow up from Purely Random Numbers Generator
...
- 23
0
votes
2
answers
123
views
Purely Random Numbers Generator
I think the best Random Number on the Planet is PI. I wrote a code that generates a list of pseudo-random numbers in Python. Then it treats this list as positions of digits in Pi and then outputs ...
- 23
3
votes
0
answers
50
views
Idiomatic PRNG in Scheme
For reasons that are too dreary to detail, I need to reproduce several pseudo
random number generators in different languages. It mostly involves translating
ancient C and FORTRAN code. No problems ...
- 257
-2
votes
1
answer
5k
views
Choose a word randomly from input, without storage [closed]
It is a practice assignment (optional). The question is asking to
"Write a program RandomWord.java that reads a sequence of words from
standard input and prints one of those words uniformly at ...
- 105
8
votes
3
answers
852
views
Finding the perfect statline for a roleplaying game using Python
I made a program for fun that tries to roll a perfect statline, i.e a statline with two groups of only 18s, for a role-playing game. I'm still a newbie in python so mainly trying to learn how to make ...
- 181
0
votes
1
answer
146
views
Python - Efficiently pick random data from an array, generate random UUIDs and save it all in an Excel table
I wrote the following prototype:
...
- 195
5
votes
4
answers
7k
views
Get random time between two time inputs
This code takes two times as input and then calculates a random time between the two inputs.
...
- 69
2
votes
1
answer
369
views
Robotic swarm simulation: aggregation
This program simulates the phenomenon of aggregation of a swarm of robots with no cooperation between each other and each robot following a very simple rule:
The velocity of this robot has a random ...
- 27.4k
4
votes
1
answer
224
views
Let's get random, extending Python's base random class
So Python's base random class uses the Mersenne Twister as its base for seeded random number generation. If available, it can use /urandom/, but that is beside the ...
- 5,705
1
vote
1
answer
332
views
C# PRNG class based on xoshiro256**
Background
I'm creating a (probably bad) map-generation utility in C# to generate fractal terrain and similar. Nothing I do probably needs special treatment, but I thought it best to start with a good ...
- 176
2
votes
1
answer
104
views
Any issue with this as a password generator?
Was trying to create a password generator like the one Bitwarden has...
Curious if anyone sees any issues with this? (wordlist shortened for readability)
There perhaps there's a more efficient way I'...
- 21
2
votes
0
answers
52
views
Python: Random forest code optimization
I've been working on random forest algorithm for classification with roulette selection to find best splits. I came up with this homebrew based on this article https://machinelearningmastery.com/...
- 21
1
vote
0
answers
54
views
simulation of updating a dataset from real time data
In this code (reproducible example) I want to generate a dataframe composed by random dates in the first col, and by random numbers (in reality they will be generate from a socket) in the second ...
- 111
5
votes
1
answer
650
views
Monte-carlo simulation code - simple exercise
I created a quick monte-carlo simulation which seems to do what I want (simple version below). The code basically simulates a Poisson distribution, say this results in a simulation of ...
- 53
2
votes
1
answer
251
views
Generating a random ipaddress in C
I was looking to receive some feedback on the function I wrote to generate a random ip address. The code is pretty messy and just wanted some feedback regarding optimizations, memory leaks and best ...
- 23
1
vote
2
answers
85
views
Optimal random integer function
What I have
Header file:
int randomInt(int start, int end);
Implementation file:
...
- 113
2
votes
1
answer
2k
views
React app that uses hooks and shows a random image every two seconds
React beginner here. I'm practicing state and hooks, and I wanted to create a small app that every two seconds fetches an image URL from a service (that returns random images) and shows the returned ...
- 145
3
votes
1
answer
113
views
Improving performance of 'Prioritized left shuffle algorithm'
I wrote a prioritized left shuffle algorithm (the code is copied from my open source C# project Fluent Random Picker).
That means: You've got some values and each of them has a priority (a number).
...
- 227
2
votes
1
answer
64
views
Python Library for Random Collections
I created a small library Python library to randomly create primitive types and collections. The primitive types are int, float, and string. The collections are tuples of 2, tuples of 3, a list, a 2d ...
- 330