Chemical Analysis
作为输入，您将得到一个化学formula 和一个数字limit 。您的任务是创建一个化学元素序列，其数量为>= limit 。
注意，在某些公式中会使用括号(), [] 。它们在化学中有着不同的含义，但从计算原子数的角度来看，它们的作用是一样的 - 就像数学表达式中的普通括号一样。This article 将帮助您打开括号，在计算时不会出错。
输入：以字符串形式输入化学式 (str)和原子的极限数量（整数 (int)...
CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.
In order to install CheckiO client you'll need installed Python (version at least 3.8)
Install CheckiO Client first:
pip3 install checkio_client
Configure your tool
checkio --domain=py config --key=
Sync solutions into your local folder
checkio sync
(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)
checkio serv -d
Alternatevly, you can install Chrome extension or FF addon
checkio install-plugin
checkio install-plugin --ff
checkio install-plugin --chromium
Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.
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