Second Index
给您两个字符串，您必须找到第二个字符串在第一个字符串中第二次出现的索引。
让我们来看第一个例子，您需要查找单词 "sims "中第二个出现的 "s"。使用函数 index 或 find，它将指出 "s "是单词 "sims "中的第一个符号，因此第一次出现的索引为0。但是我们必须找到第二个 "s"，它是连续出现的第4个符号，这意味着第二次出现的索引（问题的答案）为3。
输入两个字符串 (str)...
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.
Welcome to Pair Programming! Engage in real-time collaboration on coding projects by starting a session and sharing the provided unique URL with friends or colleagues. This feature is perfect for joint project development, debugging, or learning new skills together. Simply click 'Start Session' to begin your collaborative coding journey!
You are trying to join a pair programming session that has not started yet.
Please wait for the session creator to join.
It looks like the creator of the pair programming session closed the editor window.
It might happen accidentally, so that you can wait for reconnection.
