Where is the mistake please

Question

https://code.sololearn.com/cEF7ZGXOn74Y/?ref=app

Answer 1

I'm not c++ specialist. But after the switch case statements follows a goto loop. And from there the switch case statements.
Maybe it's only on playground the issue that the program don't stops for new input. But now it's a infinity loop.

Answer 2

Yes. It's looping infinitely. Use a conditional goto. Or use while, dowhile loops, with exit condition.