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   "metadata": {},
   "source": [
    "# Puzzle 1 of AoC 2025\n",
    "Author: Victoria Ramírez López \n",
    "\n",
    "Date: December 1, 2025"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 97,
   "id": "7545bee7-c72d-4755-a191-b0803ca31c11",
   "metadata": {},
   "outputs": [],
   "source": [
    "# Import instruction file\n",
    "instructions = open('dummy_input.txt','r')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 98,
   "id": "87fab12e-84fd-4949-a914-ed722bd28737",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3\n"
     ]
    }
   ],
   "source": [
    "# Calculate passcode\n",
    "dial_position = 50\n",
    "passcode = 0\n",
    "\n",
    "for instruction in instructions:\n",
    "    dial_position = rotate_dial(instruction, dial_position)\n",
    "    if dial_position == 0:\n",
    "        passcode = passcode + 1\n",
    "\n",
    "print(passcode)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 89,
   "id": "7689f8ae-6d8a-4116-8188-7678bfac793d",
   "metadata": {},
   "outputs": [],
   "source": [
    "def rotate_dial(instruction = '', dial_position=50):\n",
    "    # This function rotates the dial based on the input from the set of instructions\n",
    "    # input: instruction = String\n",
    "    # output: dial_position\n",
    "\n",
    "    # Split the instruction into \"direction\" and \"distance\"\n",
    "    direction = instruction[0]\n",
    "    distance = int(instruction[1:])\n",
    "\n",
    "    # Calculate final position of the dial\n",
    "    if direction == 'R':\n",
    "        dial_position = (dial_position + distance) % 100\n",
    "    elif direction == 'L':\n",
    "        dial_position = (dial_position - distance) % 100\n",
    "\n",
    "    return dial_position"
   ]
  }
 ],
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