Semantic compilation error - how to fix?

Question

Java

I am recently learning Java on my own. Now I was solving a test problem on one site and ran into a problem.

I wrote a code that in IJ solves this problem and gives the correct answer.
But my solution does not work on the site where I have to solve this problem.
Gives me a compilation error.

I tried to run the debugger in IJ and got this message: target vm is not paused by breakpoint request. evaluation of methods is not possible in this mode.

Can someone tell me what it could be? Where can I look for my mistake?

Answer 1

It's hard to say without specifics. Perhaps this site has an older version of Java than you have locally, and you are using the features of the new version.

Answer 2

this usually happens if you just don't see edge cases and handle them. Still sometimes it may not pass by time and memory on the site.