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recursion

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What does fun2() do in general?

int fun(int x, int y)

{

    if (y == 0)   return 0;

    return (x + fun(x, y-1));

}

 

int fun2(int a, int b)

{

    if (b == 0) return 1;

    return fun(a, fun2(a, b-1));

}
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