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Inverse of a Function

Consider foll...

Question

Consider following C function
$int fun(int n) {static int x =1; x = x - n; (x < 10) return (fun(fun(n - 1))); else return x;}$

What is return value of fun(7)?

A

28

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B

14

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C

None of these

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D

8

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Solution

The correct option is A 28
option (c)

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