Refer to the method f: Public int f( int k, int n ) { if( n == k ) return k; else if( n > k ) return f( k, n - k ); else return f( k - n, n ); } What value is returned by the call f( 6, 8 )?

Returned value: 2

Explanation:

Public int f(int k, int n) {

   if (n == k)

       return k;

   else if (n > k)

       return f(k, n - k);

   else return f(k - n, n);

}

Trace of function calls,

f(6, 8)

f(k, n - k) -> (6, 2)

f(k - n, n) -> (4, 2)

f(k - n, n) -> (2, 2)

return k

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