Answer Posted / ekta

1: Main is not a user defined function because user defined
functions can be given be given their own names .We can not
give a new name to main.

2:Main is not an inbuilt function because every inbuilt
function is defined in a specific library .But main has not
been defined in any library.it even works without libraries.

So finally main is just a convention to start a program.
Every language like java,c++,c all start their execution
from main.All programs need a starting point.

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