profit_max.ipynb

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  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "6\n"
     ]
    }
   ],
   "source": [
    "from typing import List\n",
    "\n",
    "def maxProfit(prices: List[int]) -> int:\n",
    "    min_price = float('inf')\n",
    "    max_profit = 0\n",
    "    \n",
    "    for price in prices:\n",
    "        if price < min_price:\n",
    "            min_price = price\n",
    "        elif price - min_price > max_profit:\n",
    "            max_profit = price - min_price\n",
    "    \n",
    "    return max_profit\n",
    "\n",
    "prices = [5, 1, 5, 6, 7, 1]\n",
    "print(maxProfit(prices))\n",
    "        \n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3\n"
     ]
    }
   ],
   "source": [
    "def lengthOfLongestSubstring(s: str) -> int:\n",
    "        sub_str=\"\"\n",
    "        # for i in range(len(s)):\n",
    "        #         if(s[:i]!=s[i:]):\n",
    "        #         #         print(s[i:],s[:i])\n",
    "        #                 sub_str=sub_str+s[i]\n",
    "        #                 print(sub_str)\n",
    "        for i in s:\n",
    "\n",
    "                if i not in sub_str:\n",
    "                        sub_str+=i\n",
    "        return len(sub_str)\n",
    "\n",
    "s = \"aabbcccaabbccbb\"\n",
    "print(lengthOfLongestSubstring(s))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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