What's the return value of following method if it is called with an input n =...

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What's the return value of following method if it is called with an input n = 9? public static int mystery (int n) { } 4 if (n < 1) return 0; else if (n % 2 == 1) else return mystery(n-1); return 1+ mystery(n-1); What's the return value of following method if it is called with an input n = 9? public static int mystery (int n) { } 4 if (n < 1) return 0; else if (n % 2 == 1) else return mystery(n-1); return 1+ mystery(n-1);