71. 简化路径.ipynb

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       "'/a/b/c'"
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    "class Solution:\n",
    "    def simplifyPath(self, path: str) -> str:\n",
    "        while '//' in path:\n",
    "            path = path.replace('//','/')\n",
    "        names = path.split('/')\n",
    "        count = 0\n",
    "        res = []\n",
    "        for name in names[::-1]:\n",
    "            if name == '..':\n",
    "                count += 1\n",
    "            elif name not in ['','.']:\n",
    "                if count > 0:\n",
    "                    count -= 1\n",
    "                else:\n",
    "                    res.append(name)\n",
    "        return '/'+'/'.join(res[::-1])\n",
    "s = Solution()\n",
    "s.simplifyPath('/a//b////c/d//././/..')"
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