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GO Classes DPP | GATE CS | C Programming | Recursion

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The function call is $\texttt{calc(4)}$.

Now expand it step by step.

$\texttt{calc(4) = 4 + calc(3)}$

$\texttt{calc(3) = 3 + calc(2)}$

$\texttt{calc(2) = 2 + calc(1)}$

The base condition is $\texttt{calc(1) = 2}$.

So,

$\texttt{calc(2) = 2 + 2 = 4}$

$\texttt{calc(3) = 3 + 4 = 7}$

$\texttt{calc(4) = 4 + 7 = 11}$

Therefore, the output is $\texttt{11}$.

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