Untitled.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "12\n"
     ]
    }
   ],
   "source": [
    "a = 5\n",
    "b = 7\n",
    "print(a + b)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "a = int(input())\n",
    "b = int(input())\n",
    "print(a + b)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "a = int(input())\n",
    "b = int(input())\n",
    "c = int(input())\n",
    "print(a + b + c)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(5 + 10)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(3 * 7, (17 - 2) * 8)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(2 ** 16)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(37 / 3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(37 // 3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(37 % 3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print('What is your name?')\n",
    "name = input()\n",
    "print('Hi ' + name + '!')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "a = input()\n",
    "b = input()\n",
    "s = a + b\n",
    "print(s)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "first = 5\n",
    "second = 7\n",
    "print(first * second)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "first = '5'\n",
    "second = \"7\"\n",
    "print(first * second)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "a = int(input())\n",
    "b = int(input())\n",
    "s = a + b\n",
    "print(s)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(17 / 3) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(2 ** 4)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(2 ** -2)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(17 / 3) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(17 // 3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(17 % 3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "x = float(input())\n",
    "print(x)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(int(1.3)) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(int(1.7)) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(int(-1.3))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(int(-1.7))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(round(1.3)) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(round(1.7)) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(round(-1.3))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(round(-1.7))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(0.1 + 0.2)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import math\n",
    "\n",
    "x = math.ceil(4.2)\n",
    "print(x)\n",
    "print(math.ceil(1 + 3.8))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from math import ceil\n",
    " \n",
    "x = 7 / 2\n",
    "y = ceil(x)\n",
    "print(y)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "x = int(input())\n",
    "if x > 0:\n",
    "    print(x)\n",
    "else:\n",
    "    print(-x)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "x = int(input())\n",
    "if x < 0:\n",
    "    x = -x\n",
    "print(x)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "x = int(input())\n",
    "print(abs(x))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "x = int(input())\n",
    "y = int(input())\n",
    "if x > 0:\n",
    "    if y > 0:\n",
    "        # x > 0, y > 0\n",
    "        print(\"Quadrant I\")\n",
    "    else:    \n",
    "        # x > 0, y <= 0\n",
    "        print(\"Quadrant IV\")\n",
    "else:\n",
    "    if y > 0:\n",
    "        # x <= 0, y > 0\n",
    "        print(\"Quadrant II\")\n",
    "    else:    \n",
    "        # x <= 0, y <= 0\n",
    "        print(\"Quadrant III\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(2 < 5)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(2 > 5)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(bool(-10)) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(bool(0)) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(bool(10)) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(bool(''))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(bool('abc'))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "a = int(input())\n",
    "b = int(input())\n",
    "if a % 10 == 0 or b % 10 == 0:\n",
    "    print('YES')\n",
    "else:\n",
    "    print('NO')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "x = int(input())\n",
    "y = int(input())\n",
    "if x > 0 and y > 0:\n",
    "    print(\"Quadrant I\")\n",
    "elif x > 0 and y < 0:\n",
    "    print(\"Quadrant IV\")\n",
    "elif y > 0:\n",
    "    print(\"Quadrant II\")\n",
    "else:\n",
    "    print(\"Quadrant III\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for character in 'hello':\n",
    "    print(character)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i in range(5, 8):\n",
    "    print(i, i ** 2)\n",
    "print('end of loop')\n",
    "# 5 25\n",
    "# 6 36\n",
    "# 7 49\n",
    "# end of loop"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i in range(3):\n",
    "    print(i)\n",
    "# 0\n",
    "# 1\n",
    "# 2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i in range(2 ** 2):\n",
    "    print('Hello, world!')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i in range(-5):\n",
    "    print('Hello, world!')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "result = 0\n",
    "n = 5\n",
    "for i in range(1, n + 1):\n",
    "    result += i\n",
    "    # this ^^ is the shorthand for\n",
    "    # result = result + i\n",
    "print(result)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i in range(10, 0, -2):\n",
    "    print(i)\n",
    "# 10\n",
    "# 8\n",
    "# 6\n",
    "# 4\n",
    "# 2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(1, 2, 3)\n",
    "print(4, 5, 6)\n",
    "print(1, 2, 3, sep=', ', end='. ')\n",
    "print(4, 5, 6, sep=', ', end='. ')\n",
    "print()\n",
    "print(1, 2, 3, sep='', end=' -- ')\n",
    "print(4, 5, 6, sep=' * ', end='.')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print('>_< ' * 5)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(len('abcdefghijklmnopqrstuvwxyz'))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "s = str(2 ** 100)\n",
    "print(s)  # 1267650600228229401496703205376\n",
    "print(len(s))  # 31"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "s = 'Hello'\n",
    "t = s  # s and t point to the same string\n",
    "t = s[2:4]  # now t points to the new string 'll'\n",
    "print(s)  # prints 'Hello' as s is not changed\n",
    "print(t)  # prints 'll'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "s = 'abcdefg'\n",
    "print(s[1])\n",
    "print(s[-1])\n",
    "print(s[1:3])\n",
    "print(s[1:-1])\n",
    "print(s[:3])\n",
    "print(s[2:])\n",
    "print(s[:-1])\n",
    "print(s[::2])\n",
    "print(s[1::2])\n",
    "print(s[::-1])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "s = 'abcdefghijklm'\n",
    "print(s[0:10:2])\n",
    "for i in range(0, 10, 2):\n",
    "    print(i, s[i])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "s = 'Hello'\n",
    "print(s.find('e'))\n",
    "# 1\n",
    "print(s.find('ll'))\n",
    "# 2\n",
    "print(s.find('L'))\n",
    "# -1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "s = 'abracadabra'\n",
    "print(s.find('b'))\n",
    "# 1\n",
    "print(s.rfind('b'))\n",
    "# 8"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "s = 'my name is bond, james bond, okay?'\n",
    "print(s.find('bond'))\n",
    "# 11\n",
    "print(s.find('bond', 12))\n",
    "# 23"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print('a bar is a bar, essentially'.replace('bar', 'pub'))\n",
    "# 'a pub is a pub, essentially'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print('a bar is a bar, essentially'.replace('bar', 'pub', 1))\n",
    "# 'a pub is a bar, essentially'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print('Abracadabra'.count('a'))\n",
    "# 4\n",
    "print(('aaaaaaaaaa').count('aa'))\n",
    "# 5"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "i = 1\n",
    "while i <= 10:\n",
    "    print(i ** 2)\n",
    "    i += 1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "n = int(input())\n",
    "length = 0\n",
    "while n > 0:\n",
    "    n //= 10  # this is equivalent to n = n // 10\n",
    "    length += 1\n",
    "print(length)  # 4"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "i = 1\n",
    "while i <= 10:\n",
    "    print(i)\n",
    "    i += 1\n",
    "else:\n",
    "    print('Loop ended, i =', i)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "total_sum = 0\n",
    "a = int(input())\n",
    "while a != 0:\n",
    "    total_sum += a\n",
    "    if total_sum >= 21:\n",
    "        print('Total sum is', total_sum)\n",
    "        break\n",
    "    a = int(input())\n",
    "else:\n",
    "    print('Total sum is less than 21 and is equal to', total_sum, '.')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "total_sum = 0\n",
    "a = int(input())\n",
    "while a != 0:\n",
    "    total_sum += a\n",
    "    if total_sum >= 21:\n",
    "        print('Total sum is', total_sum)\n",
    "        break\n",
    "    a = int(input())\n",
    "else:\n",
    "    print('Total sum is less than 21 and is equal to', total_sum, '.')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i in range(5):\n",
    "    a = int(input())\n",
    "    if a < 0:\n",
    "        print('Met a negative number', a)\n",
    "        break\n",
    "else:\n",
    "    print('No negative numbers met')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i in range(5):\n",
    "    a = int(input())\n",
    "    if a < 0:\n",
    "        print('Met a negative number', a)\n",
    "        break\n",
    "else:\n",
    "    print('No negative numbers met')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for num in range(2, 10):\n",
    "    if num % 2 == 0:\n",
    "        print(\"Found an even number\", num)\n",
    "        continue\n",
    "    print(\"Found a number\", num)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i in range(3):\n",
    "    for j in range(5):\n",
    "        if j > i:\n",
    "            # breaks only the for on line 2\n",
    "            break\n",
    "        print(i, j)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "n = int(input())\n",
    "length = 0\n",
    "while True:\n",
    "    length += 1\n",
    "    n //= 10\n",
    "    if n == 0:\n",
    "        break\n",
    "print('Length is', length)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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