Answer / susie

Answer :

9

Explanation:

return(i++) it will first return i and then increments. i.e.
10 will be returned.

Answer / rahulkulkarni

Post increment - perform operation first , then increment

In function call _l_abc its post increment, so after value 10 to be returned is decided , local variable i is increment , its i in function.

Variable i in _l_abc is different than i in main.

Post decrement : decrement first then perform operation.

In main its pre decrement , returned 10 is decremented to 9, then printed.

Now , unless compiler does not throw error of beginning function name with _ , 9 is printed.

main() { extern i; printf("%d\n",i); { int i=20; printf("%d\n",i); } }

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