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Users are constantly asking for clarification of programming puzzles. In an attempt to help new users create good challenges, I asked this question on Meta PPCG: Things to consider when creating a programming puzzle.
I've gotten some great answers, so it's time to make sure users see it when th...
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The puzzle:
Consider a console/hand-held game with a d-pad where you are required to enter a name of sorts. This appeared in many older games before the use of QWERTY was popularised in consoles (e.g. I believe the Wii uses a QWERTY keyboard layout for input). Typically, the on-screen keyboard l...
Implement a CipherSaber encryption program, as described below. Guidelines:
The smallest entry, in bytes, wins.
However, in a departure from code-golf norms, you are welcome to post interesting entries, even if they aren't serious golf entries.
Please do not use any encryption-specific libra...
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In as few bytes as possible, write a program or function that outputs the following:
Abcdefghijklmnopqrstuvwxyz
aBcdefghijklmnopqrstuvwxyz
abCdefghijklmnopqrstuvwxyz
abcDefghijklmnopqrstuvwxyz
abcdEfghijklmnopqrstuvwxyz
abcdeFghijklmnopqrstuvwxyz
abcdefGhijklmnopqrstuvwxyz
abcdefgHijklmnopqrstuv...
Fannkuch
Fannkuch is a classic benchmark program. The name comes from the German "Pfannkuchen"- pancakes- for the algorithm's resemblance to flipping stacks of pancakes. A Fannkuch sequence of numbers is formed as follows:
Take a permutation of {1.....n}, for example: {4,2,1,5,3}. Take the
...
The lost pawn problem
After the chess game ended, a surviving pawn was left behind enemy lines. let's help him find the shortest way back home.
The original problem describes a nXn "chess" board, and a function f: {1,..,n-1}X{1,..,n}X{-1,0,1} => R+ of weights. the goal is to find the best path ...
Time Traveller's Watch
code-golf javascript c pebble
Challenge
Using the phone GPS, produce a Pebble smartwatch app which displays the time for a stationary observer, the time for yourself and the difference in between the two times.
Theory
To be completed
Winning
The score is the sum of t...
Goal: Write a program or function which prints an input string in a sinusoidal shape.
The ASCII sinusoid
Here is one period of the sinusoid:
.......
... ...
.. ..
...
It's very easy:
Create a program without writing a simple line of code. The code may only consist of existing stackOverflow answers, lowest amount of code wins.
Answers may be combined and variable names may be changed, but nothing else. Any language can be used. The Q/A must be named.
The p...
When the Okies left Oklahoma and moved to California...
code-golf array-manipulation
The so-called Will Rogers phenomenon describes a way to tweak statistics by raising the average in two sets when one element is moved between the two (multi)sets. As a simple example, consider the two sets
A =...
Back in April of 2010, Joel shared our assumptions about the role of small sites in the newly minted Stack Exchange network:
If a site does not have enough activity at the end of 90 days, it will be closed down. Any existing Q&A will be archived and made available for download, but the site...
Pyth, 12 bytes
V+Gt_GXGNrN1
Demonstration.
In Pyth, G is the lowercase alphabet. +Gt_G is abcdefghijklmnopqrstuvwxyzyxwvutsrqponmlkjihgfedcba, the character that needs to be uppercased in each row.
V sets up a for loop over this string, with N as the loop variable.
In the body, XGNrN1 is a ...
Bowl Filled with Water
You should write a program or function which receives the volume of a bowl and the volume of the water in it as input and outputs ot returns an ASCII representation of a bowl with water in it with the desired volumes.
A bowl has the following structure:
\ /
\___/
...
Introduction
After a long battle, you have managed to defeat a Sphinx in a contest of riddles. The Sphinx, impressed with your skill, wishes to give you a reward commensurate with your cleverness, and conjures into existence a strip of magical parchment divided into eight boxes, each containing...
