Answer Posted / kiran kumar

For the Above Program u will get the Error as Conflictinf
types for S because you are declaring 2 variables of
different types one as char and another as char aray with
same names.

So, the compiler will be in Unpredicatable stage
variable name S to be consider for what type and it will
give Error as Confilctinf types for S.

Even if u replace any of the S with s then u will get the
Output of this Program as Segfault in Linux where as in
Windows u will get the HELLO.

To the Best of my Knowledge i Posted this Answer.
Let me Know if there is any better Clarifications.

My emai Id is kirjony@gmail.com

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