Test task for the company Metawebart.com
Write code that forces the balance of parentheses in an arithmetic expression to be corrected. The program must check that the brackets are set correctly and that their occurrence is correct. Example: if the brackets are located like this [({})] , then this is the correct occurrence, but [([) is incorrect. Input parameter - String - arithmetic expression; Output parameter - "True"; "Not true". You cannot use the eval function.
Write a query that finds non-unique id values in a table