06_now_there_are_pairs.ipynb

{
 "cells": [
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   "cell_type": "markdown",
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   "source": [
    "# Level 6: now there are pairs\n",
    "\n",
    "[http://www.pythonchallenge.com/pc/def/channel.html](http://www.pythonchallenge.com/pc/def/channel.html)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 線索\n",
    "\n",
    "有個 paypal 按鈕，難道是要付費解鎖！？🤔\n",
    "\n",
    "沒有啦，看看 html source 有解釋 paypal 按鈕與謎題無關，不過歡迎大家抖內囉！\n",
    "\n",
    "OK，唯一的線索是 html source 第一行的 ```<-- zip -->```\n",
    "\n",
    "(想很久)\n",
    "\n",
    "難道說其實提示是完整的一行？ ```<html> <!-- <-- zip -->```\n",
    "\n",
    "要我們把 html 換成 zip 嗎？\n",
    "\n",
    "把網址換成 ```http://www.pythonchallenge.com/pc/def/channel.zip```，喔喔喔真的有這個檔案啊！\n",
    "\n",
    "解開 zip 檔後，有一堆數字編號的 txt 檔，以及 readme.txt，先來看 readme.txt\n",
    "\n",
    "```\n",
    "welcome to my zipped list.\n",
    "\n",
    "hint1: start from 90052\n",
    "hint2: answer is inside the zip\n",
    "```\n",
    "\n",
    "其他的 txt 檔，看了幾個的內容也都是 ```Next nothing is xxxx``` 的格式，感覺跟 [Level 4](04_follow_the_chain.ipynb) 很像\n",
    "\n",
    "## 嘗試\n",
    "\n",
    "我把 channel.zip 及解壓縮後的 channel 目錄都先丟進 data 目錄"
   ]
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      "Next nothing is 23249\n",
      "Next nothing is 91555\n",
      "Next nothing is 20144\n",
      "Next nothing is 57011\n",
      "Next nothing is 61058\n",
      "Next nothing is 59316\n",
      "Next nothing is 109\n",
      "Next nothing is 22645\n",
      "Next nothing is 83445\n",
      "Next nothing is 66015\n",
      "Next nothing is 82896\n",
      "Next nothing is 33160\n",
      "Next nothing is 80234\n",
      "Next nothing is 69853\n",
      "Next nothing is 17729\n",
      "Next nothing is 20261\n",
      "Next nothing is 95032\n",
      "Next nothing is 19899\n",
      "Next nothing is 43848\n",
      "Next nothing is 53819\n",
      "Next nothing is 1946\n",
      "Next nothing is 75651\n",
      "Next nothing is 62387\n",
      "Next nothing is 70384\n",
      "Next nothing is 68507\n",
      "Next nothing is 88256\n",
      "Next nothing is 29789\n",
      "Next nothing is 83043\n",
      "Next nothing is 14979\n",
      "Next nothing is 97422\n",
      "Next nothing is 96333\n",
      "Next nothing is 665\n",
      "Next nothing is 83779\n",
      "Next nothing is 15008\n",
      "Next nothing is 11812\n",
      "Next nothing is 32086\n",
      "Next nothing is 19311\n",
      "Next nothing is 38267\n",
      "Next nothing is 7440\n",
      "Next nothing is 8587\n",
      "Next nothing is 84193\n",
      "Next nothing is 19413\n",
      "Next nothing is 47199\n",
      "Next nothing is 98913\n",
      "Next nothing is 79128\n",
      "Next nothing is 1447\n",
      "Next nothing is 19812\n",
      "Next nothing is 7520\n",
      "Next nothing is 58170\n",
      "Next nothing is 78767\n",
      "Next nothing is 36504\n",
      "Next nothing is 12155\n",
      "Next nothing is 53725\n",
      "Next nothing is 15724\n",
      "Next nothing is 31280\n",
      "Next nothing is 531\n",
      "Next nothing is 21899\n",
      "Next nothing is 21132\n",
      "Next nothing is 45275\n",
      "Next nothing is 14983\n",
      "Next nothing is 9207\n",
      "Next nothing is 82137\n",
      "Next nothing is 13076\n",
      "Next nothing is 32752\n",
      "Next nothing is 94091\n",
      "Next nothing is 91316\n",
      "Next nothing is 17593\n",
      "Next nothing is 86692\n",
      "Next nothing is 83916\n",
      "Next nothing is 84429\n",
      "Next nothing is 6123\n",
      "Next nothing is 52149\n",
      "Next nothing is 35368\n",
      "Next nothing is 85722\n",
      "Next nothing is 84034\n",
      "Next nothing is 71297\n",
      "Next nothing is 226\n",
      "Next nothing is 20433\n",
      "Next nothing is 83398\n",
      "Next nothing is 5442\n",
      "Next nothing is 81622\n",
      "Next nothing is 93237\n",
      "Next nothing is 76689\n",
      "Next nothing is 67773\n",
      "Next nothing is 16764\n",
      "Next nothing is 12187\n",
      "Next nothing is 45084\n",
      "Next nothing is 23959\n",
      "Next nothing is 83235\n",
      "Next nothing is 38733\n",
      "Next nothing is 55868\n",
      "Next nothing is 29\n",
      "Next nothing is 83831\n",
      "Next nothing is 80100\n",
      "Next nothing is 14723\n",
      "Next nothing is 60832\n",
      "Next nothing is 72946\n",
      "Next nothing is 37493\n",
      "Next nothing is 27258\n",
      "Next nothing is 67542\n",
      "Next nothing is 28426\n",
      "Next nothing is 35520\n",
      "Next nothing is 19478\n",
      "Next nothing is 53315\n",
      "Next nothing is 89835\n",
      "Next nothing is 45636\n",
      "Next nothing is 84411\n",
      "Next nothing is 44013\n",
      "Next nothing is 67751\n",
      "Next nothing is 94119\n",
      "Next nothing is 15872\n",
      "Next nothing is 97486\n",
      "Next nothing is 4530\n",
      "Next nothing is 2285\n",
      "Next nothing is 48179\n",
      "Next nothing is 36594\n",
      "Next nothing is 52069\n",
      "Next nothing is 44214\n",
      "Next nothing is 50187\n",
      "Next nothing is 63191\n",
      "Next nothing is 96123\n",
      "Next nothing is 37905\n",
      "Next nothing is 35302\n",
      "Next nothing is 26074\n",
      "Next nothing is 24510\n",
      "Next nothing is 77136\n",
      "Next nothing is 34296\n",
      "Next nothing is 29704\n",
      "Next nothing is 22944\n",
      "Next nothing is 10945\n",
      "Next nothing is 73256\n",
      "Next nothing is 40940\n",
      "Next nothing is 2718\n",
      "Next nothing is 94666\n",
      "Next nothing is 53811\n",
      "Next nothing is 75159\n",
      "Next nothing is 14802\n",
      "Next nothing is 29858\n",
      "Next nothing is 79484\n",
      "Next nothing is 55887\n",
      "Next nothing is 8798\n",
      "Next nothing is 89519\n",
      "Next nothing is 60659\n",
      "Next nothing is 53544\n",
      "Next nothing is 8514\n",
      "Next nothing is 97430\n",
      "Next nothing is 1228\n",
      "Next nothing is 16133\n",
      "Next nothing is 19944\n",
      "Next nothing is 25547\n",
      "Next nothing is 76840\n",
      "Next nothing is 57327\n",
      "Next nothing is 96467\n",
      "Next nothing is 97937\n",
      "Next nothing is 22345\n",
      "Next nothing is 75533\n",
      "Next nothing is 80499\n",
      "Next nothing is 39170\n",
      "Next nothing is 25194\n",
      "Next nothing is 78713\n",
      "Next nothing is 7331\n",
      "Next nothing is 92642\n",
      "Next nothing is 45567\n",
      "Next nothing is 58155\n",
      "Next nothing is 4918\n",
      "Next nothing is 92414\n",
      "Next nothing is 42478\n",
      "Next nothing is 57589\n",
      "Next nothing is 46276\n",
      "Next nothing is 28529\n",
      "Next nothing is 36871\n",
      "Next nothing is 44875\n",
      "Next nothing is 66783\n",
      "Next nothing is 1043\n",
      "Next nothing is 78311\n",
      "Next nothing is 65698\n",
      "Next nothing is 95457\n",
      "Next nothing is 28935\n",
      "Next nothing is 58156\n",
      "Next nothing is 12445\n",
      "Next nothing is 21019\n",
      "Next nothing is 81654\n",
      "Next nothing is 82814\n",
      "Next nothing is 75481\n",
      "Next nothing is 41055\n",
      "Next nothing is 55067\n",
      "Next nothing is 49768\n",
      "Next nothing is 7422\n",
      "Next nothing is 30983\n",
      "Next nothing is 81931\n",
      "Next nothing is 45122\n",
      "Next nothing is 75101\n",
      "Next nothing is 71773\n",
      "Next nothing is 52323\n",
      "Next nothing is 41386\n",
      "Next nothing is 36729\n",
      "Next nothing is 24027\n",
      "Next nothing is 82430\n",
      "Next nothing is 53824\n",
      "Next nothing is 75518\n",
      "Next nothing is 38146\n",
      "Next nothing is 27401\n",
      "Next nothing is 1321\n",
      "Next nothing is 20200\n",
      "Next nothing is 30934\n",
      "Next nothing is 43923\n",
      "Next nothing is 9472\n",
      "Next nothing is 87617\n",
      "Next nothing is 7973\n",
      "Next nothing is 40413\n",
      "Next nothing is 34242\n",
      "Next nothing is 51833\n",
      "Next nothing is 7298\n",
      "Next nothing is 26372\n",
      "Next nothing is 22704\n",
      "Next nothing is 87196\n",
      "Next nothing is 1866\n",
      "Next nothing is 10454\n",
      "Next nothing is 8810\n",
      "Next nothing is 14074\n",
      "Next nothing is 77163\n",
      "Next nothing is 15394\n",
      "Next nothing is 5630\n",
      "Next nothing is 17801\n",
      "Next nothing is 80920\n",
      "Next nothing is 22571\n",
      "Next nothing is 25311\n",
      "Next nothing is 270\n",
      "Next nothing is 2144\n",
      "Next nothing is 63031\n",
      "Next nothing is 82371\n",
      "Next nothing is 94758\n",
      "Next nothing is 38188\n",
      "Next nothing is 34663\n",
      "Next nothing is 69757\n",
      "Next nothing is 37718\n",
      "Next nothing is 55552\n",
      "Next nothing is 81137\n",
      "Next nothing is 27652\n",
      "Next nothing is 87492\n",
      "Next nothing is 25632\n",
      "Next nothing is 95731\n",
      "Next nothing is 53233\n",
      "Next nothing is 69684\n",
      "Next nothing is 75600\n",
      "Next nothing is 84135\n",
      "Next nothing is 72452\n",
      "Next nothing is 73281\n",
      "Next nothing is 45808\n",
      "Next nothing is 934\n",
      "Next nothing is 12130\n",
      "Next nothing is 15750\n",
      "Next nothing is 69210\n",
      "Next nothing is 99905\n",
      "Next nothing is 63643\n",
      "Next nothing is 47850\n",
      "Next nothing is 83564\n",
      "Next nothing is 77241\n",
      "Next nothing is 75978\n",
      "Next nothing is 24255\n",
      "Next nothing is 89197\n",
      "Next nothing is 42934\n",
      "Next nothing is 76920\n",
      "Next nothing is 29994\n",
      "Next nothing is 45675\n",
      "Next nothing is 30076\n",
      "Next nothing is 69280\n",
      "Next nothing is 70557\n",
      "Next nothing is 43708\n",
      "Next nothing is 62628\n",
      "Next nothing is 89095\n",
      "Next nothing is 80504\n",
      "Next nothing is 76887\n",
      "Next nothing is 27720\n",
      "Next nothing is 67628\n",
      "Next nothing is 11080\n",
      "Next nothing is 37351\n",
      "Next nothing is 55940\n",
      "Next nothing is 56000\n",
      "Next nothing is 79866\n",
      "Next nothing is 33203\n",
      "Next nothing is 16228\n",
      "Next nothing is 8716\n",
      "Next nothing is 74862\n",
      "Next nothing is 32459\n",
      "Next nothing is 58183\n",
      "Next nothing is 18633\n",
      "Next nothing is 40377\n",
      "Next nothing is 70141\n",
      "Next nothing is 84619\n",
      "Next nothing is 28850\n",
      "Next nothing is 45925\n",
      "Next nothing is 7057\n",
      "Next nothing is 16792\n",
      "Next nothing is 54610\n",
      "Next nothing is 21249\n",
      "Next nothing is 15667\n",
      "Next nothing is 91038\n",
      "Next nothing is 44221\n",
      "Next nothing is 992\n",
      "Next nothing is 8700\n",
      "Next nothing is 45100\n",
      "Next nothing is 68628\n",
      "Next nothing is 67824\n",
      "Next nothing is 46145\n",
      "Collect the comments.\n"
     ]
    }
   ],
   "source": [
    "nothing = \"90052\"\n",
    "while 1:\n",
    "    with open(f\"./data/channel/{nothing}.txt\") as f:\n",
    "        content = f.read()\n",
    "    print(content)\n",
    "    nothing = content.split()[-1]\n",
    "    if not nothing.isdigit():\n",
    "        break\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "並沒有一直無限循環下去，而是停止在了 ```46145.txt```，裡面只寫著：\n",
    "> Collect the comments.\n",
    "\n",
    "什麼 comments......?\n",
    "\n",
    "(想了很久很久很久很久很久很久很久很久之後)\n",
    "\n",
    "zip comment ??"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "****************************************************************\n",
      "****************************************************************\n",
      "**                                                            **\n",
      "**   OO    OO    XX      YYYY    GG    GG  EEEEEE NN      NN  **\n",
      "**   OO    OO  XXXXXX   YYYYYY   GG   GG   EEEEEE  NN    NN   **\n",
      "**   OO    OO XXX  XXX YYY   YY  GG GG     EE       NN  NN    **\n",
      "**   OOOOOOOO XX    XX YY        GGG       EEEEE     NNNN     **\n",
      "**   OOOOOOOO XX    XX YY        GGG       EEEEE      NN      **\n",
      "**   OO    OO XXX  XXX YYY   YY  GG GG     EE         NN      **\n",
      "**   OO    OO  XXXXXX   YYYYYY   GG   GG   EEEEEE     NN      **\n",
      "**   OO    OO    XX      YYYY    GG    GG  EEEEEE     NN      **\n",
      "**                                                            **\n",
      "****************************************************************\n",
      " **************************************************************\n"
     ]
    }
   ],
   "source": [
    "from zipfile import ZipFile\n",
    "\n",
    "zip = ZipFile(\"./data/channel.zip\")\n",
    "nothing = \"90052\"\n",
    "\n",
    "while 1:\n",
    "    zip_info = zip.getinfo(f\"{nothing}.txt\")\n",
    "    print(zip_info.comment.decode(), end=\"\")\n",
    "    content = zip.read(zip_info).decode()\n",
    "    # print(content)\n",
    "    nothing = content.split()[-1]\n",
    "    if not nothing.isdigit():\n",
    "        break"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "因此可以得知下一關的網址就是 ```http://www.pythonchallenge.com/pc/def/hockey.html```\n",
    "\n",
    ".  \n",
    ".  \n",
    ".  \n",
    "\n",
    "才怪...\n",
    "\n",
    "頁面上寫：\n",
    "> it's in the air. look at the letters. \n",
    "\n",
    "好吧，字母分別是 O X Y G E N\n",
    "\n",
    "那麼，下一關的網址其實應該是 ```http://www.pythonchallenge.com/pc/def/oxygen.html``` 才對"
   ]
  }
 ],
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