30 votes
Accepted

April 2017 Community Challenge

Simulate a Multi-Way Intersection This was actually a project I had to do in college with PLC's. The idea is to simulate a four-way (or other intersection) stop-light, each light should be ...
Der Kommissar's user avatar
29 votes
Accepted

June 2016 Community Challenge

Chutes (snakes1) & Ladders When I was a child, the board-game "Chutes & Ladders" really grew my hatred for anything random. The board is 10 x 10. The object of the game is to get your piece ...
Raystafarian's user avatar
  • 7,139
23 votes
Accepted

July 2016 Community Challenge

Monopoly A Monopoly question was posted recently, and was very well received by the entire Stack Exchange community. So my proposal is to create a Monopoly game. It seems like it'd be a challenge to ...
syb0rg's user avatar
  • 21.8k
23 votes
Accepted

August 2016 Community Challenge

The Rainfall Challenge Problem description is copied verbatim from the linked Code Review question: Problem Statement A group of farmers has some elevation data, and we're going to help them ...
Vogel612's user avatar
  • 25.2k
22 votes

April 2017 Community Challenge

(re-submit of an idea from the last round) Chain (or belt) drive system I propose a variation on this challenge by Ell over on PCG - minus the golfing requirement, of course. (Disclosure: I've already ...
Flambino's user avatar
  • 33k
20 votes

April 2017 Community Challenge

Virtual machine The task here is to create a simulated computer of some kind. The virtual machine should have a CPU, an instruction set and anything else needed (e.g. simulated ROM, RAM, registers, ...
Edward's user avatar
  • 66.4k
18 votes

September 2016 Community Challenge

Chain (or belt) drive system I propose a variation on this challenge by Ell over on PCG - minus the golfing requirement, of course. (Disclosure: I've already done this challenge in JavaScript) To ...
Flambino's user avatar
  • 33k
17 votes
Accepted

CODE REVIEW 2017 Challenge

Write your own programming language I think for this challenge we should make the barrier to entry low, the barrier to win high, but most of all it should be fun! Since we're writing a language, it'...
Peilonrayz's user avatar
  • 43.3k
13 votes

April 2017 Community Challenge

Chess! Last year ended with a board-game spree. Let's continue this year with one. I think you all know the game of Chess, which is exactly why I just linked to the wikipedia page. Even though ...
Simon Forsberg's user avatar
11 votes

August 2016 Community Challenge

CRitter Collaboration Choose a previous community challenge and work with someone(s) to complete it. Though interest in challenges may be high time can be scarce so this is a way to get more ...
Legato's user avatar
  • 9,829
10 votes
Accepted

Votes on a Community Challenge come to a draw, what should we do?

I think that if two answers score the same amount of votes by the end of the selection phase, both answers should be picked. This would require a small change to the current selection text: At the ...
Peilonrayz's user avatar
  • 43.3k
9 votes

August 2016 Community Challenge

Text-based version of Conway's Game of Life Game Rules Rules are copied from conwaylife.com The universe of the Game of Life is an infinite two-dimensional orthogonal grid of square cells, each of ...
JanDotNet's user avatar
  • 8,538
8 votes

April 2017 Community Challenge

PIZZA time ! This challenge is a practice problem for Google Hash Code 2017. Introduction Did you know that at any given time, someone is cutting pizza somewhere around the world? The ...
Grajdeanu Alex's user avatar
6 votes

Votes on a Community Challenge come to a draw, what should we do?

One possible way to avoid this situation is for the author of the question not to vote until seconds before accepting an answer. You only need one person to break the tie after all, and all votes ...
Mast's user avatar
  • 13.4k
6 votes
Accepted

June 2017 Community Challenge

While last year was all about games, let's keep this year going on the topic of 'industrial systems' and such. People always want to implement an 'Elevator Management System', and we also saw a '...
Der Kommissar's user avatar
6 votes
Accepted

May 2017 Community Challenge

(re-submit of an idea from last round and the one before that because 3rd time's the charm?) Chain (or belt) drive system I propose a variation on this challenge by Ell over on PCG - minus the golfing ...
Flambino's user avatar
  • 33k
6 votes

CODE REVIEW 2017 Challenge: Entries

Nafi I'll leave it up to the community to decide whether I have enough done to get the bounty, but I plan on continuing this project. It's been fun so far and there's no way I'm stopping yet. This is ...
CAD97's user avatar
  • 1,944
6 votes

June 2016 Community Challenge

Simplify a DFA Understanding and simplifying a formal language can be difficult. Doing it for a visual representation of that language is a well-understood phenomenon for "regular languages" (RegEx ...
Vogel612's user avatar
  • 25.2k
6 votes

July 2016 Community Challenge

Create an IoT application Maybe you've been looking for an excuse to finally dust off your Raspberry Pi. Maybe you have an Amazon Echo and you want test out some of its functions, or maybe you just ...
Legato's user avatar
  • 9,829
6 votes

September 2016 Community Challenge

I re-submit Heslacher's proposal from August 2015: In image processing, a contour is a closed curve forming the boundary of a region of the image (or a union of closed curves, if the region has holes)...
Mast's user avatar
  • 13.4k
5 votes

April 2017 Community Challenge

Copied over (and lightly adapted from) this question: The latest hit on TV is a jumping game played on a giant rectangular chessboard. Each participant dresses up in a green frog suit and starts at ...
Vogel612's user avatar
  • 25.2k
5 votes

July 2016 Community Challenge

Cover a board with dominoes Given an arbitrarily sized and shaped board of squares, find If there is a way to cover it with dominoes (2x1 squares) such that each square is covered and no two squares ...
Michael Brandon Morris's user avatar
4 votes

CODE REVIEW 2017 Challenge

Create an image from any given file. The objective is to create an image from any file, per instance, text file, audio file, or any other file. This is more of a challenge where people should be ...
Bruno Costa's user avatar
  • 5,566
3 votes

September 2016 Community Challenge

Combinations Calculator What is a combination? A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected. For example, ...
Raystafarian's user avatar
  • 7,139
3 votes

CODE REVIEW 2017 Challenge

Allocate resources efficiently on a work environment The company Code42Review demands that their employees are able to handle work items as efficiently as possible. Those work items are assigned ...
Bruno Costa's user avatar
  • 5,566
1 vote

Votes on a Community Challenge come to a draw, what should we do?

I posted the chain drive challenge, which is currently almost tied for first place, so I'm biased but: There are a lot of good challenge suggestions this time, and I'm tempted to try almost all of ...
Flambino's user avatar
  • 33k

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