Consider the following piece of C code:

#include

#include

int x;

int bar(int a, int b)

{

int i = b;

b = i + 10;

return x + b;

}

void foo(int a, int* b)

{

int c[3] = {0,0,0};

int d;

b = malloc(sizeof(int));

*b = 42;

d = bar(a, c[++x]);

a = 101;

printf("%d ", a);

printf("%d ", *b);

printf("%d ", c[0]);

printf("%d ", c[1]);

printf("%d ", c[2]);

printf("%d ", d);

}

int main()

{

x = 0;

int* y = malloc(sizeof(int));

*y = 20;

foo(x, y);

printf("%d ", x);

printf("%d ", *y);

return x;

}

a. What is the output of this program if parameters are passed by value?

b. What is the output of this program if parameters are passed by reference?

c. What is the output of this program if parameters are passed by name?