If used with the feature, the returned line number from error report is not correct, which causes trouble in debugging.

I think a better alternative is to comment out the unnecessary region and submit, that way the line number of the submitted version is consistent with the local buffer.

Also, I have made a local emacs client that uses the newest vsc-leetcode-cli and in my opinion it works better than the vscode client. Are you interested in making an Emacs counterpart for the current vscode plugin? If so, I can definitely offer my help!