{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "from typing import List \n",
    "\n",
    "class Solution:\n",
    "    a = 2\n",
    "    def productExceptSelf(self, nums: List[int]) -> List[int]:\n",
    "        print(self.a)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2\n"
     ]
    }
   ],
   "source": [
    "Solution().productExceptSelf([1,2,3])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "d = dict()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "d.update({2:3})"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "d.update({(1,2): 2})"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{2: 3, (1, 2): 2}"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "d"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [],
   "source": [
    "a = [1,2,3,4,5]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[1, 2]"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "a[:2]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[4, 5]"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "a[2+1:]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "https://leetcode.com/problems/product-of-array-except-self/\n",
    "\n",
    "\n",
    "Runtime: 308 ms, faster than 7.34% of Python3 online submissions for Product of Array Except Self.\n",
    "Memory Usage: 21.2 MB, less than 60.26% of Python3 online submissions for Product of Array Except Self.\n",
    "\n",
    "\n",
    "```python\n",
    "class Solution:\n",
    "    def productExceptSelf(self, nums: List[int]) -> List[int]:\n",
    "        all = self.getProduct(nums)\n",
    "        r = []\n",
    "        for i, v in enumerate(nums):\n",
    "            if v == 0:\n",
    "                r.append(self.getProduct(nums[:i] + nums[i+1:]))\n",
    "            else:\n",
    "                r.append(int(all/v))\n",
    "        return r\n",
    "    def getProduct(self, nums: List[int]):\n",
    "        all = nums[0]\n",
    "        for v in nums[1:]:\n",
    "            all *= v\n",
    "        return all \n",
    "```\n",
    "\n",
    "\n",
    "Spent 40 minutes\n",
    "\n",
    "2 Shoot"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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