Alex Pounds creature
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| import random | |
| import itertools | |
| # The function we want to minimise. Our function takes a 4-tuple of values. | |
| def f(tup): | |
| w, x, y, z = tup # This is called "tuple unpacking" | |
| return w + x + y + z | |
| # Here's a function that takes a tuple and returns True if it fits the constraints, | |
| # False otherwise. I've decided that there should be no more than 2 values > 50 in our |
creature
/ linkedlist.wdi5.rb
Created
April 24, 2014 13:14
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| class Node | |
| attr_accessor :value # The value we're storing | |
| attr_accessor :next_node # The next node in the list, if any | |
| def initialize(new_value) | |
| @value = new_value | |
| @next_node = nil | |
| end | |
| end |
creature
/ generator.rb
Created
April 20, 2014 00:05
A script that generates an XML file suitable for use by the Gnome Background Properties to change wallpapers.
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| files = [] | |
| puts "<background> | |
| <starttime> | |
| <year>2009</year> | |
| <month>08</month> | |
| <day>04</day> | |
| <hour>00</hour> | |
| <minute>00</minute> | |
| <second>00</second> | |
| </starttime>" |
creature
/ linkedlist.rb
Last active
June 10, 2020 07:52
A Ruby demo of a linked list, transformed into a doubly-linked list and some performance improvements.
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| class Node | |
| attr_accessor :value | |
| attr_accessor :next, :previous | |
| def initialize(value) | |
| @value = value | |
| @next = nil | |
| @previous = nil | |
| end | |
| end |
creature
/ morethanoneway.rb
Created
January 16, 2014 14:14
A demonstration that there's more than one way to reverse a string.
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| require 'test/unit' | |
| class TestStringReversal < Test::Unit::TestCase | |
| def setup | |
| @methods = self.methods.select {|name| name.to_s.include? "reverse"} | |
| end | |
| def test_string_reversal | |
| @methods.each {|method| |
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| class Hotel | |
| DOUBLE_ROOM_CAPACITY = 2 | |
| SINGLE_ROOM_CAPACITY = 1 | |
| def initialize(double_count, single_count) | |
| @rooms = [] | |
| @capacity = 0 | |
| @guestbook = [] | |
| double_count.times do |
creature
/ .bashrc
Created
October 15, 2013 12:23
Displays some extra information in your bash prompt. If you're connected via ssh, then highlight the hostname; if the previous command has a non-zero exit code, show the ending character in red; if you're on a git branch, show its name at the start of the prompt; and if your branch has uncommitted changes, add an asterisk within the branch label.
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| # Add this to your .bashrc. | |
| parse_git_changes() { | |
| if [ -d .git ] || git rev-parse --git-dir > /dev/null 2>&1; then | |
| git update-index -q --refresh | |
| DIFFS=$(git diff-index --no-ext-diff --name-only HEAD --) | |
| LOCALS=$(git ls-files --exclude-standard --others) | |
| if [[ "$DIFFS$LOCALS" ]]; then | |
| echo "*" | |
| fi | |
| fi |