Doubt in the below code, regarding printing sizeof structure value?

Question

When I try to run the below program,I get error message.
I don't know, why does this error message coming?
Please tell me, how to avoid this error message and why it is happening
https://code.sololearn.com/cSS1XcRULCKL/?ref=app

Answer 1

Printf() should be inside of a block/function.
Suggestions: place your printf (line no. 11) into main function

Answer 2

This number is plateform dependant.
Here a int is 4 octets long and the pointer (a adress) is 12 octet long

Answer 3

You're welcome :)

Answer 4

Thank you Bernard Bordja (•‿•)

Answer 5

Thank you rupali ,now my code is working fine(✿^‿^)