Need help to hand traching this code: #include <iostream> using namespace std; v

Question

Need help to hand traching this code:

#include <iostream>

using namespace std;

void find(int& a, int b, int& c,)

int main()

{

int one, two, three;

one = 1;

two = 2;

three = 3;

find(one, two, three);

cout << one << ", " << two << ", " << three << endl;

find(two, one, three);

cout << one << ", " << two << ", " << three << endl;

find(three, two, one);

cout << one << ", " << two << ", " << three << endl;

find(two, three, one);

cout << one << ", " << two << ", " << three << endl;

return 0;

}

void find(int& a, int b, int& c)

{

int temp;

c = a * b + 2;

temp = c;

if (b==0)

    a = c / (b + 1);

a = a + c – b;

c = b * temp;

}

Explanation / Answer

In your code some errors are there i correct it and mention the program below.

#include <iostream>
using namespace std;
void find(int& a, int b, int& c);
int main()
{
int one, two, three;
> two = 2;
three = 3;
find(one, two, three);
cout << one << ", " << two << ", " << three << endl;
find(two, one, three);
cout << one << ", " << two << ", " << three << endl;
find(three, two, one);
cout << one << ", " << two << ", " << three << endl;
find(two, three, one);
cout << one << ", " << two << ", " << three << endl;
return 0;
}

void find(int& a, int b, int& c)
{
int temp;
c = a * b + 2;
temp = c;
if (b == 0)
a = c / (b + 1);
a = a + c - b;
c = b * temp;
}

Tracing for above mentioned code:

one=1, two=2, three =3

find(1,2,3) // function calling

Here a=1, b=2,c=3

c=a*b+2= 1*2+2 =4

temp = c = 4

if (b==0) // condition is failed so it's not executed

a = a+c-b = 1+4-2 = 3

b= b*temp = 2*4 = 8

now printing 3,2,8

find(2,3 ,8)// again function calling

a = 2, b=3, c=8

c = a*b+2 = 2*3+2 = 8

temp = 8

if (b==0) // condition is failed so it's not executed

a= a+c-b = 2+8-3 = 7

c= b*temp = 3*8 = 24

now printing 3,7,24

find(24,7,3) // again function calling

a=24, b=7, c=3

c=a*b+2 = 24*7+2 = 170

temp = 170

if (b==0) // condition is failed so it's not executed

a= a+c-b = 24+170-7 = 187

c= b* temp = 7*170 = 1190

now printing 1190, 7, 187

find(7,187,1190) // function calling

a = 7, b=187, c=1190

c = a * b+2 = 7*187+2 =1311

temp = 1311

if(b==0) // condition fail so it's not executed

a = a+c-b = 7+1311-187 = 1131

c = b* temp = 187 * 1311 = 245157

now printing 245157, 1131, 187

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