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Tim Visée timvisee

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Falsehoods programmers believe about prices

  1. You can store a price in a floating point variable.
  2. All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
  3. All currencies are subdivided in decimal units (like dinar/fils)
  4. All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
  5. All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
  6. Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
  7. For any currency you can have a price of 1. (ZWL)
  8. Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)
@kmorcinek
kmorcinek / .gitignore
Last active April 23, 2024 21:36
.gitignore for C# projects
# The following command works for downloading when using Git for Windows:
# curl -LOf http://gist.githubusercontent.com/kmorcinek/2710267/raw/.gitignore
#
# Download this file using PowerShell v3 under Windows with the following comand:
# Invoke-WebRequest https://gist.githubusercontent.com/kmorcinek/2710267/raw/ -OutFile .gitignore
#
# or wget:
# wget --no-check-certificate http://gist.githubusercontent.com/kmorcinek/2710267/raw/.gitignore
# User-specific files
@shmup
shmup / torrents.md
Last active April 11, 2024 10:03
transmission blocklist guide

Transmission Blocklist

The Transmission torrent client has an option to set a Blocklist, which helps protect you from getting caught and having the DMCA send a letter/email.

It's as simple as downloading and installing the latest client:

@kitek
kitek / gist:1579117
Created January 8, 2012 17:50
NodeJS create md5 hash from string
var data = "do shash'owania";
var crypto = require('crypto');
crypto.createHash('md5').update(data).digest("hex");

WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

  • Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
  • Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
  • Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
  • Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
  • Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru

@xsot
xsot / instructions.md
Last active March 3, 2024 13:42
sed maze solver

Usage

sed -E -f solver.sed input where input is a file containing the maze.

For best results, resize your terminal to match the height of the maze. To disable animations, delete the lines containing p.

Maze format

The solver assumes the following:

  • The maze only contains the characters # \nSE
  • Every line has the same number of characters
  • There is only one start (S) and end (E)
@timvisee
timvisee / my-subreddits.txt
Last active January 16, 2024 03:54
My subreddits
11foot8
18650masterrace
1911
2b2t
3Dprinting
3dshacks
3kliksphilip
45thworldproblems
5September2020
9CB9D65
@huonw
huonw / blackmagic.rs
Created January 15, 2014 12:42
do-while loops in Rust
while {
let x = foo();
bar(x);
x != 0
} {}
@jmiserez
jmiserez / export_google_music.js
Last active December 20, 2023 01:45
(fixed/updated 2016-05-10) Export your Google Music Library and Playlists (Google Play Music All Access) (see http://webapps.stackexchange.com/questions/50311/print-playlist-from-google-play-music for more)
// Copyright 2016 Jeremie Miserez <jeremie@miserez.org>
//
// MIT License
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF O
@BomBardyGamer
BomBardyGamer / dimension_codec.snbt
Created June 10, 2021 10:07
The default dimension codec, as of 1.17, as SNBT
{
"minecraft:dimension_type": {
type: "minecraft:dimension_type",
value: [
{
name: "minecraft:overworld",
id: 0,
element: {
piglin_safe: 0b,
natural: 1b,