Wrong format show in result webpage

[jdneo]

🐛 Bug Report

A clear and concise description of what the bug is.

To Reproduce

1. Pick a problem, like [7]
2. Test with default test cases
3. Get the following result page:

@Vigilans I think we did too much tricky logic in the result page, The previous behavior, which directly shows the outputs, is much more stable.

This bug is a blocking issue.

[jdneo]

Resolved in #254