Improving the code.

Question

Hi,

I'm a new baby, but I try to write something more interesting than a calculator.
Can you view my code and indicate obvious errors in the logic?
Can I use global var? How to solve an issue without global variables?

https://code.sololearn.com/cO5NAy9Zw2c4#cs

Many thanks!

Answer 1

I think you should do the global var and fix the strings