All Questions
305 questions
9votes
2answers
1kviews
"Weird Algorithm" (Collatz) from CSES Problem Set
I had to solve the following problem: Consider an algorithm that takes as input a positive integer n. If n is even, the algorithm divides it by two, and if n is odd, the algorithm multiplies it by ...
8votes
3answers
2kviews
Is set of integers closed under the operation of subtraction?
I was working on a problem, but my solution did not pass the time limit test. Problem Let's say a set of integers is closed under the operation of subtraction if for two distinct elements of this set ...
3votes
2answers
158views
Basic Linked List Implementation in JavaScript
Clarification of Intent Recursion here is used on purpose for practice - note that iteration is preferred in this case (I'll be more clear about where my intentions are!) Factory function was also ...
- 39
4votes
3answers
1kviews
Coding exercise to represent an integer as words using python
Context: Convert a non-negative integer num to its English words representation. Example 1: Input: num = 123 Output: "One Hundred Twenty Three" Example 2: Input: num = 12345 Output: "...
- 111
7votes
3answers
201views
Euler - Largest Palindrome Product in Java
Having been going over the documentation, learning more of the subtleties of Java. I am now going over some basic Project-Euler solution code I wrote a little while back. Hoping I can pick up some ...
- 780
2votes
0answers
105views
Rust implementation of a BTree
I'm studying rust, and I decided to implement a BTree as a way of learning the language. Can anyone give me suggestions on the code? As the language has no inheritance, and we must replace it with ...
- 176
2votes
1answer
35views
Simplify matching values while comparing two sorted sets
This is in Star Basic but most likely quite a few languages would have similar structure. I am comparing rows in two sorted sheets. I have a comparison function which returns -1 / 0 / 1 similarly to <...
- 376
8votes
3answers
2kviews
Sieve of Eratosthenes in C++ with wheel factorization
I have written a completely working C++ program for the first time, and I have managed to compile it. I have decided to learn C++ and I have written a C++ program to familiarize myself with C++, this ...
- 3,406
2votes
1answer
662views
Find all permutations of string using recursion
Background: I am somewhat new to programming and only two weeks into learning Python. Currently trying to improve my understanding of recursion, which has been a tough concept for me to implement. ...
- 21
3votes
1answer
161views
String Permutation Implemention
The objective is simple: List all possible permutations for a given a String. I looked at some implementations from popular sources. I decided to build this to the flow: The Code for Review ...
0votes
1answer
173views
Bookstore program using standard algorithms
This is the exercise, from C++ Primer 5th edition: 10.32: Rewrite the bookstore problem from § 1.6 (p. 24) using a vector to hold the transactions and various algorithms to do the processing. Use <...
0votes
1answer
187views
Getting three numbers input interactively and process them
I'm new to Python and programming in general. Let's imagine I have a simple task: Given 3 numbers from user input, I need to count negative ones and print the result. Considering what I know about ...
- 19
0votes
1answer
414views
subsets in array. Algorithm (No Linq)
Task: A subset is a continuous segment of an array. Two integer arrays are given with elements from 1 to 100: of N and n (N > n). For every subset of the first array of n length find out the next ...
1vote
2answers
108views
Object-Oriented Blackjack V2
[Edited] formatting and Flake8 linter corrections Four days ago I posted my first object oriented programming project. Everything I have learned to date is self-taught and posting project to receive ...
2votes
1answer
356views
Sorting visualizer using Java Swing
I programmed a little sorting visualizer a while back and I have been meaning to get some feedback on the overall implementation and on what I could do better to have cleaner code or a "best ...
- 119
