Andy Lee aglee

## AoC2018Day07.swift
import Foundation

let USING_TEST_INPUT = false

let commandURL = URL(fileURLWithPath: CommandLine.arguments[0])
let inputFileName = USING_TEST_INPUT ? "test.txt" : "input.txt"
let inputFileURL = commandURL.deletingLastPathComponent().appendingPathComponent(inputFileName)
let inputText = try! String(contentsOf: inputFileURL, encoding: .utf8).trimmingCharacters(in: .whitespacesAndNewlines)
let inputLines = inputText.split(separator: "\n")

## main.swift
import Foundation

let commandURL = URL(fileURLWithPath: CommandLine.arguments[0])
let inputFileURL = commandURL.deletingLastPathComponent().appendingPathComponent("input.txt")
let inputText = try! String(contentsOf: inputFileURL, encoding: .utf8).trimmingCharacters(in: .whitespacesAndNewlines)
let inputLines = inputText.split(separator: "\n")

// I will call the input coordinates "pins", as in pins on a map (is clearer to my mind than "coordinates").
// I will call the index of a pin in allPins its "pinID".

## NSSet-Pitfalls.m
#import <Foundation/Foundation.h>

// Two things to know about NSSet:
//
// - NSSet assumes its elements will never mutate.  It breaks if they do.
// - Unlike NSDictionary, NSSet does not copy its unique objects.  It stores
//   the original pointers.
//
// Bottom line: DO NOT MUTATE OBJECTS THAT ARE ELEMENTS OF AN NSSET.  The
// code below demonstrates the kind of bugs you could run into if you

## ij.py
# Expects i and j to be 1-based row and column indexes, respectively.
def f(i, j):
	return (((i+j-1) * (i+j))/2) - (i if ((i+j-1) & 1 == 0) else j) + 1

# Test: use f() to generate matrix and visually inspect it
# to see that the numbers are correct.
for i in range(10):
	line = ""
	for j in range(10):
		line += "%5d" % (f(i+1, j+1))

## ij.swift
import Foundation

// Expects i and j to be 1-based row and column indexes, respectively.
func f(_ i: Int, _ j: Int) -> Int {
	return ((i+j-1) * (i+j))/2 - (((i+j-1) & 1 == 0) ? i : j) + 1
}

// Test: use f() to generate matrix and visually inspect it
// to see that the numbers are correct.
for i in 1...10 {

## TreeDiff.py
#!/usr/bin/python

"""
https://www.hackerrank.com/challenges/cut-the-tree
"""

class Node(object):
	def __init__(self, weight):
		self.weight = weight
		self.adjacent_nodes = []

## TreeSearch.swift
func ==(lhs: Node, rhs: Node) -> Bool {
	return lhs === rhs
}

class Node: Equatable {
	var value: String
	var children: [Node] = []

	init(_ value: String) {
		self.value = value

## RVNReceiptValidation.m
//
//  RVNReceiptValidation.m
//
//  Created by Satoshi Numata on 12/06/30.
//  Copyright (c) 2012 Sazameki and Satoshi Numata, Ph.D. All rights reserved.
//
//  This sample shows how to write the Mac App Store receipt validation code.
//  Replace kRVNBundleID and kRVNBundleVersion with your own ones.
//
//  This sample is provided because the coding sample found in "Validating Mac App Store Receipts"

## NSApplication+MarkdownCredits.h
//
//  NSApplication+MarkdownCredits.h
//  ALUtilities
//
//	Copyright (c) 2013 Andy Lee
//
//	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

## gap-stores-autism-discount.htm
<html>

<head>
<meta http-equiv=Content-Type content="text/html; charset=macintosh">
<meta name=ProgId content=Excel.Sheet>
<meta name=Generator content="Microsoft Excel 14">
<link rel=File-List href="gap-stores-autism-discount_files/filelist.xml">
<style>
<!--table
	{mso-displayed-decimal-separator:"\.";
	import Foundation

	let USING_TEST_INPUT = false

	let commandURL = URL(fileURLWithPath: CommandLine.arguments[0])
	let inputFileName = USING_TEST_INPUT ? "test.txt" : "input.txt"
	let inputFileURL = commandURL.deletingLastPathComponent().appendingPathComponent(inputFileName)
	let inputText = try! String(contentsOf: inputFileURL, encoding: .utf8).trimmingCharacters(in: .whitespacesAndNewlines)
	let inputLines = inputText.split(separator: "\n")
	#import <Foundation/Foundation.h>

	// Two things to know about NSSet:
	//
	// - NSSet assumes its elements will never mutate. It breaks if they do.
	// - Unlike NSDictionary, NSSet does not copy its unique objects. It stores
	// the original pointers.
	//
	// Bottom line: DO NOT MUTATE OBJECTS THAT ARE ELEMENTS OF AN NSSET. The
	// code below demonstrates the kind of bugs you could run into if you
	# Expects i and j to be 1-based row and column indexes, respectively.
	def f(i, j):
	return (((i+j-1) * (i+j))/2) - (i if ((i+j-1) & 1 == 0) else j) + 1

	# Test: use f() to generate matrix and visually inspect it
	# to see that the numbers are correct.
	for i in range(10):
	line = ""
	for j in range(10):
	line += "%5d" % (f(i+1, j+1))
	import Foundation

	// Expects i and j to be 1-based row and column indexes, respectively.
	func f(_ i: Int, _ j: Int) -> Int {
	return ((i+j-1) * (i+j))/2 - (((i+j-1) & 1 == 0) ? i : j) + 1
	}

	// Test: use f() to generate matrix and visually inspect it
	// to see that the numbers are correct.
	for i in 1...10 {
	#!/usr/bin/python

	"""
	https://www.hackerrank.com/challenges/cut-the-tree
	"""

	class Node(object):
	def __init__(self, weight):
	self.weight = weight
	self.adjacent_nodes = []
	func ==(lhs: Node, rhs: Node) -> Bool {
	return lhs === rhs
	}

	class Node: Equatable {
	var value: String
	var children: [Node] = []

	init(_ value: String) {
	self.value = value
	//
	// RVNReceiptValidation.m
	//
	// Created by Satoshi Numata on 12/06/30.
	// Copyright (c) 2012 Sazameki and Satoshi Numata, Ph.D. All rights reserved.
	//
	// This sample shows how to write the Mac App Store receipt validation code.
	// Replace kRVNBundleID and kRVNBundleVersion with your own ones.
	//
	// This sample is provided because the coding sample found in "Validating Mac App Store Receipts"
	//
	// NSApplication+MarkdownCredits.h
	// ALUtilities
	//
	// Copyright (c) 2013 Andy Lee
	//
	// 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
	<html>

	<head>
	<meta http-equiv=Content-Type content="text/html; charset=macintosh">
	<meta name=ProgId content=Excel.Sheet>
	<meta name=Generator content="Microsoft Excel 14">
	<link rel=File-List href="gap-stores-autism-discount_files/filelist.xml">
	<style>
	<!--table
	{mso-displayed-decimal-separator:"\.";