DayOneAndTwo

1/Trebuchet.ipynb

@@ -61,14 +61,14 @@
     "\n",
     "    if c is None:\n",
     "        break\n",
-    "    sublist = []\n",
+    "    front = []\n",
     "\n",
     "    for i in c:\n",
     "        if i in numbers:\n",
-    "            sublist.append(str(i))     \n",
+    "            front.append(str(i))     \n",
     "      \n",
     "    if len(numbers) > 1:\n",
-    "        Solution += int(sublist[0] + sublist[len(sublist)-1])\n",
+    "        Solution += int(front[0] + front[len(front)-1])\n",
     "        \n",
     "    elif len(numbers) == 1:\n",
     "        Solution += int(numbers[0]*2)\n",
@@ -82,6 +82,112 @@
    "source": [
     "The right answer is: 55447"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "--- Part Two ---\n",
+    "\n",
+    "\n",
+    "Your calculation isn't quite right. It looks like some of the digits are actually spelled out with letters: one, two, three, four, five, six, seven, eight, and nine also count as valid \"digits\".\n",
+    "\n",
+    "Equipped with this new information, you now need to find the real first and last digit on each line. For example:\n",
+    "\n",
+    "two1nine\n",
+    "eightwothree\n",
+    "abcone2threexyz\n",
+    "xtwone3four\n",
+    "4nineeightseven2\n",
+    "zoneight234\n",
+    "7pqrstsixteen\n",
+    "In this example, the calibration values are 29, 83, 13, 24, 42, 14, and 76. Adding these together produces 281.\n",
+    "\n",
+    "What is the sum of all of the calibration values?"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 47,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "54706\n"
+     ]
+    }
+   ],
+   "source": [
+    "def openafile(filename):\n",
+    "    with open(filename, 'r') as file:\n",
+    "        for line in file:\n",
+    "            yield line.strip()\n",
+    "\n",
+    "def lookfornum(lines, letter, ir):\n",
+    "    line = ''\n",
+    "    for i in lines[:lines.index(letter)]:\n",
+    "        line += i\n",
+    "        if 'one'[::ir] in line:\n",
+    "            return 1\n",
+    "        elif 'two'[::ir] in line:\n",
+    "            return 2\n",
+    "        elif 'three'[::ir] in line:\n",
+    "            return 3\n",
+    "        elif 'four'[::ir] in line:\n",
+    "            return 4\n",
+    "        elif 'five'[::ir] in line:\n",
+    "            return 5\n",
+    "        elif 'six'[::ir] in line:\n",
+    "            return 6\n",
+    "        elif 'seven'[::ir] in line:\n",
+    "            return 7\n",
+    "        elif 'eight'[::ir] in line:\n",
+    "            return 8\n",
+    "        elif 'nine'[::ir] in line:\n",
+    "            return 9\n",
+    "    return -1\n",
+    "\n",
+    "line = openafile(\"calibration.txt\")\n",
+    "numbers = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '0']\n",
+    "Solution = 0\n",
+    "\n",
+    "while True:\n",
+    "    c = next(line, None)\n",
+    "    if c is None:\n",
+    "        break\n",
+    "    \n",
+    "    front = []\n",
+    "    back = []\n",
+    "\n",
+    "    for i in c:\n",
+    "        if i in numbers:\n",
+    "            found_num = lookfornum(c, i, 1)\n",
+    "            if found_num > -1:\n",
+    "                front.append(str(found_num))\n",
+    "                break\n",
+    "            front.append(str(i))\n",
+    "            break\n",
+    "\n",
+    "    for i in c[::-1]:\n",
+    "        if i in numbers:\n",
+    "            found_num = lookfornum(c[::-1], i, -1)\n",
+    "            if found_num > -1:\n",
+    "                back.append(str(found_num))\n",
+    "                break\n",
+    "            front.append(str(i))\n",
+    "            break\n",
+    "\n",
+    "    front.extend(back[::-1])\n",
+    "\n",
+    "    if len(front) > 1:\n",
+    "        Solution += int(front[0] + front[-1])\n",
+    "    else:\n",
+    "        Solution += int(front[0] * 2)\n",
+    "\n",
+    "print(Solution)\n"
+   ]
   }
  ],
  "metadata": {