Consider the following program written in C syntax

void fun( int x, int y) {

int z;

z=a;

a=b;

b=z;}

void main(){

int a=3;

int nums [10]={1,2,3,4,5,6,7,8,9,10};

fun ( a, nums[3]) ;

fun ( nums[2], nums[3]) ;

fun ( a, nums[a]) ;

}

For each of the following parameter passing methods, what are all of the values of the variables a and num after each of the three calls to fun?

Passed by value:

Passed by reference:

Passed by value - result: