Algorithms | Recursion | Question 4

What does the following function do?

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int fun(int x, int y)
{
    if (y == 0)   return 0;
    return (x + fun(x, y-1));
}

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(A) x + y
(B) x + x*y
(C) x*y
(D) xy


Answer: (C)

Explanation: The function adds x to itself y times which is x*y.

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