Answer Posted / deepak kumar

error : lvalue required.

n++ return 10 and after that n will increase to 1.
so now n=11
but next operation (postfix operator) is performing on
constant value 10 which is returned by (n++) operation.
it actually try to assign 11 to constant value 10. it is not
possible .
firstly we have to store it in a variable and then increment
can take place..

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