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/* ordinal 1.0.2: https://github.com/dcousens/ordinal/
Copyright (c) 2016, Daniel Cousens
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
require.preload("ordinal", String.raw`
function indicator (i) {
  var cent = i % 100
  if (cent >= 10 && cent <= 20) return 'th'
  var dec = i % 10
  if (dec === 1) return 'st'
  if (dec === 2) return 'nd'
  if (dec === 3) return 'rd'
  return 'th'
function ordinal (i) {
  if (typeof i !== 'number') throw new TypeError('Expected Number, got ' + (typeof i) + ' ' + i)
  return i + indicator(i)
ordinal.indicator = indicator
module.exports = ordinal`)
/* date-names 0.1.11: https://github.com/martinandert/date-names
The MIT License (MIT)
Copyright (c) 2014 Martin Andert
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 OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
require.preload("date-names", String.raw`
module.exports = {
  __locale: "en",
  days: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
  abbreviated_days: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
  months: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
  abbreviated_months: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
  am: 'AM',
require.preload("./dayname.js", String.raw`
const names = ["Sunday", "Monday", "Tuesday", "Wednesday",
               "Thursday", "Friday", "Saturday"];
exports.dayName = function(number) {
  return names[number];
exports.dayNumber = function(name) {
  return names.indexOf(name);
require.preload("./seasonname.js", String.raw`
module.exports = ["Winter", "Spring", "Summer", "Autumn"];`)
/* ini 1.3.5: https://github.com/npm/ini
The ISC License
Copyright (c) Isaac Z. Schlueter and Contributors
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
require.preload("ini", String.raw`exports.parse = exports.decode = decode
exports.stringify = exports.encode = encode
exports.safe = safe
exports.unsafe = unsafe
var eol = typeof process !== 'undefined' &&
  process.platform === 'win32' ? '\r\n' : '\n'
function encode (obj, opt) {
  var children = []
  var out = ''
  if (typeof opt === 'string') {
    opt = {
      section: opt,
      whitespace: false
    opt = opt || {}
    opt.whitespace = opt.whitespace === true
  var separator = opt.whitespace ? ' = ' : '='
  Object.keys(obj).forEach(function (k, _, __) {
    var val = obj[k]
    if (val && Array.isArray(val)) {
      val.forEach(function (item) {
        out += safe(k + '[]') + separator + safe(item) + '\n'
    } else if (val && typeof val === 'object') {
      children.push(k)
    } else {
      out += safe(k) + separator + safe(val) + eol
  if (opt.section && out.length) {
    out = '[' + safe(opt.section) + ']' + eol + out
  children.forEach(function (k, _, __) {
    var nk = dotSplit(k).join('\\.')
    var section = (opt.section ? opt.section + '.' : '') + nk
    var child = encode(obj[k], {
      section: section,
      whitespace: opt.whitespace
    if (out.length && child.length) {
      out += eol
    out += child
  return out
function dotSplit (str) {
  return str.replace(/\1/g, '\u0002LITERAL\\1LITERAL\u0002')
    .replace(/\\\./g, '\u0001')
    .split(/\./).map(function (part) {
      return part.replace(/\1/g, '\\.')
      .replace(/\2LITERAL\\1LITERAL\2/g, '\u0001')
function decode (str) {
  var out = {}
  var p = out
  var section = null
  //          section     |key      = value
  var re = /^\[([^\]]*)\]$|^([^=]+)(=(.*))?$/i
  var lines = str.split(/[\r\n]+/g)
  lines.forEach(function (line, _, __) {
    if (!line || line.match(/^\s*[;#]/)) return
    var match = line.match(re)
    if (!match) return
    if (match[1] !== undefined) {
      section = unsafe(match[1])
      p = out[section] = out[section] || {}
      return
    var key = unsafe(match[2])
    var value = match[3] ? unsafe(match[4]) : true
    switch (value) {
      case 'true':
      case 'false':
      case 'null': value = JSON.parse(value)
    // Convert keys with '[]' suffix to an array
    if (key.length > 2 && key.slice(-2) === '[]') {
      key = key.substring(0, key.length - 2)
      if (!p[key]) {
        p[key] = []
      } else if (!Array.isArray(p[key])) {
        p[key] = [p[key]]
    // safeguard against resetting a previously defined
    // array by accidentally forgetting the brackets
    if (Array.isArray(p[key])) {
      p[key].push(value)
    } else {
      p[key] = value
  // {a:{y:1},"a.b":{x:2}} --> {a:{y:1,b:{x:2}}}
  // use a filter to return the keys that have to be deleted.
  Object.keys(out).filter(function (k, _, __) {
    if (!out[k] ||
      typeof out[k] !== 'object' ||
      Array.isArray(out[k])) {
      return false
    // see if the parent section is also an object.
    // if so, add it to that, and mark this one for deletion
    var parts = dotSplit(k)
    var p = out
    var l = parts.pop()
    var nl = l.replace(/\\\./g, '.')
    parts.forEach(function (part, _, __) {
      if (!p[part] || typeof p[part] !== 'object') p[part] = {}
      p = p[part]
    if (p === out && nl === l) {
      return false
    p[nl] = out[k]
    return true
  }).forEach(function (del, _, __) {
    delete out[del]
  return out
function isQuoted (val) {
  return (val.charAt(0) === '"' && val.slice(-1) === '"') ||
    (val.charAt(0) === "'" && val.slice(-1) === "'")
function safe (val) {
  return (typeof val !== 'string' ||
    val.match(/[=\r\n]/) ||
    val.match(/^\[/) ||
    (val.length > 1 &&
     isQuoted(val)) ||
    val !== val.trim())
      ? JSON.stringify(val)
      : val.replace(/;/g, '\\;').replace(/#/g, '\\#')
function unsafe (val, doUnesc) {
  val = (val || '').trim()
  if (isQuoted(val)) {
    // remove the single quotes before calling JSON.parse
    if (val.charAt(0) === "'") {
      val = val.substr(1, val.length - 2)
    try { val = JSON.parse(val) } catch (_) {}
    // walk the val to find the first not-escaped ; character
    var esc = false
    var unesc = ''
    for (var i = 0, l = val.length; i < l; i++) {
      var c = val.charAt(i)
      if (esc) {
        if ('\\;#'.indexOf(c) !== -1) {
          unesc += c
        } else {
          unesc += '\\' + c
        esc = false
      } else if (';#'.indexOf(c) !== -1) {
        break
      } else if (c === '\\') {
        esc = true
      } else {
        unesc += c
    if (esc) {
      unesc += '\\'
    return unesc.trim()
  return val
/* dijkstrajs 1.0.1: https://github.com/tcort/dijkstrajs/
Dijkstra path-finding functions. Adapted from the Dijkstar Python project.
Copyright (C) 2008
  Wyatt Baldwin <self@wyattbaldwin.com>
  All rights reserved
Licensed under the MIT license.
  http://www.opensource.org/licenses/mit-license.php
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 OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE. */
require.preload("dijkstrajs", String.raw`'use strict';
var dijkstra = {
  single_source_shortest_paths: function(graph, s, d) {
    // Predecessor map for each node that has been encountered.
    // node ID => predecessor node ID
    var predecessors = {};
    // Costs of shortest paths from s to all nodes encountered.
    // node ID => cost
    var costs = {};
    costs[s] = 0;
    // Costs of shortest paths from s to all nodes encountered; differs from
    // costs in that it provides easy access to the node that currently has
    // the known shortest path from s.
    // XXX: Do we actually need both costs and open?
    var open = dijkstra.PriorityQueue.make();
    open.push(s, 0);
    var closest,
        u, v,
        cost_of_s_to_u,
        adjacent_nodes,
        cost_of_e,
        cost_of_s_to_u_plus_cost_of_e,
        cost_of_s_to_v,
        first_visit;
    while (!open.empty()) {
      // In the nodes remaining in graph that have a known cost from s,
      // find the node, u, that currently has the shortest path from s.
      closest = open.pop();
      u = closest.value;
      cost_of_s_to_u = closest.cost;
      // Get nodes adjacent to u...
      adjacent_nodes = graph[u] || {};
      // ...and explore the edges that connect u to those nodes, updating
      // the cost of the shortest paths to any or all of those nodes as
      // necessary. v is the node across the current edge from u.
      for (v in adjacent_nodes) {
        if (adjacent_nodes.hasOwnProperty(v)) {
          // Get the cost of the edge running from u to v.
          cost_of_e = adjacent_nodes[v];
          // Cost of s to u plus the cost of u to v across e--this is *a*
          // cost from s to v that may or may not be less than the current
          // known cost to v.
          cost_of_s_to_u_plus_cost_of_e = cost_of_s_to_u + cost_of_e;
          // If we haven't visited v yet OR if the current known cost from s to
          // v is greater than the new cost we just found (cost of s to u plus
          // cost of u to v across e), update v's cost in the cost list and
          // update v's predecessor in the predecessor list (it's now u).
          cost_of_s_to_v = costs[v];
          first_visit = (typeof costs[v] === 'undefined');
          if (first_visit || cost_of_s_to_v > cost_of_s_to_u_plus_cost_of_e) {
            costs[v] = cost_of_s_to_u_plus_cost_of_e;
            open.push(v, cost_of_s_to_u_plus_cost_of_e);
            predecessors[v] = u;
    if (typeof d !== 'undefined' && typeof costs[d] === 'undefined') {
      var msg = ['Could not find a path from ', s, ' to ', d, '.'].join('');
      throw new Error(msg);
    return predecessors;
  extract_shortest_path_from_predecessor_list: function(predecessors, d) {
    var nodes = [];
    var u = d;
    var predecessor;
    while (u) {
      nodes.push(u);
      predecessor = predecessors[u];
      u = predecessors[u];
    nodes.reverse();
    return nodes;
  find_path: function(graph, s, d) {
    var predecessors = dijkstra.single_source_shortest_paths(graph, s, d);
    return dijkstra.extract_shortest_path_from_predecessor_list(
      predecessors, d);
   * A very naive priority queue implementation.
  PriorityQueue: {
    make: function (opts) {
      var T = dijkstra.PriorityQueue,
          t = {},
          key;
      opts = opts || {};
      for (key in T) {
        if (T.hasOwnProperty(key)) {
          t[key] = T[key];
      t.queue = [];
      t.sorter = opts.sorter || T.default_sorter;
      return t;
    default_sorter: function (a, b) {
      return a.cost - b.cost;
     * Add a new item to the queue and ensure the highest priority element
     * is at the front of the queue.
    push: function (value, cost) {
      var item = {value: value, cost: cost};
      this.queue.push(item);
      this.queue.sort(this.sorter);
     * Return the highest priority element in the queue.
    pop: function () {
      return this.queue.shift();
    empty: function () {
      return this.queue.length === 0;
// node.js module exports
if (typeof module !== 'undefined') {
  module.exports = dijkstra;
/* random-item 1.0.0: https://github.com/sindresorhus/random-item
The MIT License (MIT)
Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
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 OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE. */
require.preload("random-item", String.raw`'use strict';
module.exports = function (arr) {
	if (!Array.isArray(arr)) {
		throw new TypeError('Expected an array');
	return arr[Math.floor(Math.random() * arr.length)];
require.preload("./format-date.js", String.raw`const ordinal = require("ordinal");
const {days, months} = require("date-names");
exports.formatDate = function(date, format) {
  return format.replace(/YYYY|M(MMM)?|Do?|dddd/g, tag => {
    if (tag == "YYYY") return date.getFullYear();
    if (tag == "M") return date.getMonth();
    if (tag == "MMMM") return months[date.getMonth()];
    if (tag == "D") return date.getDate();
    if (tag == "Do") return ordinal(date.getDate());
    if (tag == "dddd") return days[date.getDay()];
require.preload("./graph.js", String.raw`exports.buildGraph = function(edges) {
  let graph = Object.create(null);
  function addEdge(from, to) {
    if (!(from in graph)) graph[from] = Object.create(null);
    graph[from][to] = 1;
  for (let [from, to] of edges) {
    addEdge(from, to);
    addEdge(to, from);
  return graph;
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