Merge pull request #3841 from michael-krebs/feature/add-advanced-solutions

Adds dting's solutions to advanced bonfires

seed/challenges/advanced-bonfires.json

@@ -57,6 +57,9 @@
       "MDNlinks": [
         "RegExp"
       ],
+      "solutions": [
+        "var re = /^(?:(?:\\+?1\\s*(?:[.-]\\s*)?)?(?:\\(\\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9])\\s*\\)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\\s*(?:[.-]\\s*)?)?([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\\s*(?:[.-]\\s*)?([0-9]{4})$/;\n\nfunction telephoneCheck(str) {\n  return !!str.match(re);\n}\n\ntelephoneCheck(\"555-555-5555\");"
+      ],
       "type": "bonfire",
       "challengeType": 5,
       "nameCn": "",
@@ -95,6 +98,9 @@
         "Array.reduce()",
         "Symmetric Difference"
       ],
+      "solutions": [
+        "function sym(args) {\n  var index = -1;\n  var length = arguments.length;\n  var result;\n  while (++index < length) {\n    var array = arguments[index];\n    result = result ? diff(result, array).concat(diff(array, result)) : array;\n  }\n  return result ? uniq(result) : [];\n}\n\nfunction uniq(arr) {\n  var h = Object.create(null);\n  var u = [];\n  arr.forEach(function(v) {\n    if (v in h) return;\n    h[v] = true;\n    u.push(v);\n  });\n  return u;\n}\n\nfunction diff(a, b) {\n  var h = Object.create(null);\n  b.forEach(function(v) {\n    h[v] = true;  \n  });\n  return a.filter(function(v) { return !(v in h);});\n}\nsym([1, 2, 3], [5, 2, 1, 4]);\n"
+      ],
       "type": "bonfire",
       "challengeType": 5,
       "nameCn": "",
@@ -151,6 +157,9 @@
       "MDNlinks": [
         "Global Object"
       ],
+      "solutions": [
+        "var VALUES = [1, 5, 10, 25, 100, 500, 1000, 2000, 10000];\n\nfunction drawer(price, cash, cid) {\n  cash = ~~(cash * 100);\n  price = ~~(price * 100);\n  var diff = cash-price;\n  cid.forEach(function(c) {\n    c[1] = ~~(c[1] * 100);\n  });\n  var totalCid = cid.reduce(function(a, c) {\n    return a + c[1];\n  }, 0);\n  if (diff > totalCid) {\n    return \"Insufficient Funds\";\n  }\n  if (diff === totalCid) {\n    return \"Closed\";\n  }\n  \n  var change = []; \n  var index = cid.length;\n  while (diff > 0 && --index > -1) {\n    var t = 0;\n    var value = VALUES[index];\n    while (diff >= value && cid[index][1] > 0) {\n      t += value;\n      cid[index][1] -= value;\n      diff -= value;\n    }\n    if (t) {\n      change.push([cid[index][0], t/100]);\n    }\n    console.log(JSON.stringify(change));\n  }\n  // Here is your change, ma'am.\n  return change;\n}\n\n// Example cash-in-drawer array:\n// [['PENNY', 1.01],\n// ['NICKEL', 2.05],\n// ['DIME', 3.10],\n// ['QUARTER', 4.25],\n// ['ONE', 90.00],\n// ['FIVE', 55.00],\n// ['TEN', 20.00],\n// ['TWENTY', 60.00],\n// ['ONE HUNDRED', 100.00]]\n\ndrawer(19.50, 20.00, [['PENNY', 1.01], ['NICKEL', 2.05], ['DIME', 3.10], ['QUARTER', 4.25], ['ONE', 90.00], ['FIVE', 55.00], ['TEN', 20.00], ['TWENTY', 60.00], ['ONE HUNDRED', 100.00]]);\n"
+      ],
       "type": "bonfire",
       "challengeType": 5,
       "nameCn": "",
@@ -205,6 +214,9 @@
       "MDNlinks": [
         "Global Array Object"
       ],
+      "solutions": [
+        "function inventory(arr1, arr2) {\n  arr2.forEach(function(item) {\n    createOrUpdate(arr1, item);\n  });\n  // All inventory must be accounted for or you're fired!\n  return arr1;\n}\n\nfunction createOrUpdate(arr1, item) {\n  var index = -1;\n  while (++index < arr1.length) {\n    if (arr1[index][1] === item[1]) {\n      arr1[index][0] += item[0];\n      return;\n    }\n    if (arr1[index][1] > item[1]) {\n      break;\n    }\n  }\n  arr1.splice(index, 0, item);\n}\n\n// Example inventory lists\nvar curInv = [\n    [21, 'Bowling Ball'],\n    [2, 'Dirty Sock'],\n    [1, 'Hair Pin'],\n    [5, 'Microphone']\n];\n\nvar newInv = [\n    [2, 'Hair Pin'],\n    [3, 'Half-Eaten Apple'],\n    [67, 'Bowling Ball'],\n    [7, 'Toothpaste']\n];\n\ninventory(curInv, newInv);\n"
+      ],
       "type": "bonfire",
       "challengeType": 5,
       "nameCn": "",
@@ -246,6 +258,9 @@
         "Permutations",
         "RegExp"
       ],
+      "solutions": [
+        "function permAlone(str) {\n  return permutor(str).filter(function(perm) {\n    return !perm.match(/(.)\\1/g);\n  }).length;\n}\n\nfunction permutor(str) {\n  // http://staff.roguecc.edu/JMiller/JavaScript/permute.html\n  //permArr: Global array which holds the list of permutations\n  //usedChars: Global utility array which holds a list of \"currently-in-use\" characters\n  var permArr = [], usedChars = [];\n  function permute(input) {\n    //convert input into a char array (one element for each character)\n    var i, ch, chars = input.split(\"\");\n    for (i = 0; i < chars.length; i++) {\n      //get and remove character at index \"i\" from char array\n      ch = chars.splice(i, 1);\n      //add removed character to the end of used characters\n      usedChars.push(ch);\n      //when there are no more characters left in char array to add, add used chars to list of permutations\n      if (chars.length === 0) permArr[permArr.length] = usedChars.join(\"\");\n      //send characters (minus the removed one from above) from char array to be permuted\n      permute(chars.join(\"\"));\n      //add removed character back into char array in original position\n      chars.splice(i, 0, ch);\n      //remove the last character used off the end of used characters array\n      usedChars.pop();\n    }\n  }\n  permute(str);\n  return permArr;\n}\n\npermAlone('aab');\n"
+      ],
       "type": "bonfire",
       "challengeType": 5,
       "nameCn": "",
@@ -291,6 +306,9 @@
         "String.substr()",
         "parseInt()"
       ],
+      "solutions": [
+        "function friendly(str) {\n  var dates = str.map(function(s) {return s.split('-').map(Number);});\n  var start = dates[0];\n  var end = dates[1];\n  if (str[0] === str[1]) {\n    return [readable(start)];\n  }\n  if (start[0] !== end[0]) {\n    if (start[0] + 1 === end[0] && start[1] > end[1]) {\n      start[0] = undefined;\n      end[0] = undefined;\n    }\n    return dates.map(readable);\n  }\n  start[0] = undefined;\n  end[0] = undefined;\n  if (start[1] !== end[1]) {\n    return dates.map(readable);\n  }\n  end[1] = undefined;\n  return dates.map(readable);\n}\n\nfunction readable(arr) {\n  var ordD = arr[2] + nth(arr[2]);\n  if (!arr[1]) {\n    return ordD;\n  }\n  return MONTH[arr[1]] +  \" \" + ordD + (!arr[0] ? \"\" : \", \" + arr[0]);\n}\n\nvar MONTH = {1: \"January\",\n             2: \"February\",\n             3: \"March\",\n             4: \"April\",\n             5: \"May\",\n             6: \"June\",\n             7: \"July\",\n             8: \"August\",\n             9: \"September\",\n             10: \"October\",\n             11: \"November\",\n             12: \"December\"};\n\nfunction nth(d) {\n  if(d>3 && d<21) return 'th';\n  switch (d % 10) {\n    case 1:  return \"st\";\n    case 2:  return \"nd\";\n    case 3:  return \"rd\";\n    default: return \"th\";\n  }\n} \n\nfriendly(['2015-07-01', '2015-07-04']);\n"
+      ],
       "type": "bonfire",
       "challengeType": 5,
       "nameCn": "",