leap year calc.ipynb

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     "text": [
      "Which year do you want to check? 2400\n",
      "Leap year.\n"
     ]
    }
   ],
   "source": [
    "year = int(input(\"Which year do you want to check? \"))\n",
    "\n",
    "if year % 4 == 0:\n",
    "  if year % 100 == 0:\n",
    "    if year % 400 == 0:\n",
    "      print(\"Leap year.\")\n",
    "    else:\n",
    "      print(\"Not leap year.\")\n",
    "  else:\n",
    "    print(\"Leap year.\")\n",
    "else:\n",
    "  print(\"Not leap year.\")\n"
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     "text": [
      "Enter a year: 2024\n",
      "Enter a month: 2\n",
      "29\n"
     ]
    }
   ],
   "source": [
    "def is_leap(year):\n",
    "  if year % 4 == 0:\n",
    "    if year % 100 == 0:\n",
    "      if year % 400 == 0:\n",
    "        return True\n",
    "      else:\n",
    "        return False\n",
    "    else:\n",
    "      return True\n",
    "  else:\n",
    "   return False\n",
    "\n",
    "def days_in_month(year, month):\n",
    "  month_days = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]  \n",
    "  if is_leap(year) and month == 2:\n",
    "      return 29\n",
    "  return month_days[month - 1]\n",
    "  \n",
    "year = int(input(\"Enter a year: \"))\n",
    "month = int(input(\"Enter a month: \"))\n",
    "days = days_in_month(year, month)\n",
    "print(days)"
   ]
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