How to call function in c?

Question

Help me

Answer 1

function_name (args);
by writing the function name like above, you may not need args depending on the function.
when you write :
printf("hello, world") ;
you are calling the function printf().

Answer 2

For more information, this may help you..
https://www.tutorialspoint.com/cprogramming/c_functions.htm

https://beginnersbook.com/2014/01/c-function-call-by-value-example/