Infinite Mirrors Quine This challenge is to create a program that prints out code that prints the original. Basically, this program should take an input, check if it's A, and if so, print out the code in the if statement for if the input is B. If the input is B, print out the code in the A if sta...

When you type the id of a docker container into a command like docker exec you can type just the prefix characters needed to uniquely identify the container id. $ docker ps --format '{{.ID}}' 1a948cad61eb 18fe005e6b4a 1812a4a7f172 $ docker exec 18 echo hello Error response from daemon: Multiple ...

Count the available moves Just a brief Lay-out of an idea, I‘ll expand it further soon. Given an input representing a chess board, containing between 1 and 16 pieces of each colour, with White to play, output the number of moves that White is able to play. Input may be any reasonable representati...

Sequel to Verify Tents and Trees solution. Background Tents and Trees (try here) is a puzzle played on a square (or rectangular) grid, where the objective is to place tents horizontally or vertically adjacent to each of the trees, so that no two tents touch each other in 8 directions (horizontall...

Sort a list of versions code-golf string number Given a list of versions in any reasonable format (the default string format will be used throughout this question text), return the list, sorted from most to least recent. Versions in the list will adhere to the semantic versioning specification wh...

XOR two strings code-golf string Given two strings as input return the result of XORing the code-points of one string against the code points of the other. For each character in the first input string, take the code-point (e.g. for A, this is 65) and XOR the value against the corresponding index ...

=> WE Classify rice grains by calculating their average length/breadth ratio by using Image processing in python. =>We analyse the quality of rice by calculating the average length/breadth ratio for each rice grain. We use Image processing Based on this ratio, rice quality can be graded. This imp...

JFor? More like XNor. decision-problembinary As it turns out, Python allows for 1j for to be compressed to 1jfor. However, jfor sounds like xnor. Since all similar-phonic phrases have something in common, there must be some property shared between jfor and xnor. If we look at the ASCII representa...

Background Peter's Father, the Teacher of a dance-club, asks Peter a question: Given are two natural numbers(\$\mathbb{N}\$ \$x\$ and \$y\$). \$x\$ is the number of the dress-types(eg. shorts, shirts\$\dots\$) we have and \$y\$ is number of dress-colors(eg.green, blue, \$\dots\$) we have. In the ...

When encountering a problem whose input is meant to be read sequentially, but you may also want to push back onto the input like a stack, which languages have the optimal boilerplates for doing so, and how? For example, from Create a Boolean Calculator, we have a string like: 1AND0OR1XOR1 We wan...

Count The Genus Objective Given a matrix of connected box drawing characters, count its genus, the number of plane sections it encloses. Valid input The box drawing characters are ─│┌┐└┘├┤┬┴┼╴╵╶╷ (U+2500 U+2502 U+250C U+2510 U+2514 U+2518 U+251C U+2524 U+252C U+2534 U+253C U+2574 U+2575 U+2576 U+...