Consider the following C function void swap (int x, int y)

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Computer Science & IT

54

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Consider the following C function
void swap (int x, int y)
{
int tmp;
tmp = x;
x = y;
y = tmp;
}
In order to exchange the values of two variables a and b:

[ISRO CS May 2017]

A Call swap (a, b)

B Call swap (a, &b)

C swap(a, b) cannot be used as it does not return any value

D swap(a, b) cannot be used as the parameters passed by value