I need an output for the following questions: 1.) int main() { int x=50, y=60, z

Question

I need an output for the following questions:

1.)

int main()

{

int x=50, y=60, z=70;

int *ptr;

cout << x << y << x;

ptr=&x;
*ptr ++;

ptr = &y;
*ptr = x;

ptr = &z;
*ptr = *ptr * 2;

cout << x << y << z;

}

2.)

int main()
{
   //Call the showStatic function five times

   for(int count = 0; count <5; count++)
   {
       showStatic();
   }
   return 0;
}

void showStatic()

{
   static int numCalls = 0; //Static local variable
   numCalls ++;
   cout << "This function has been called" << numCalls << "times. " << endl;
}

3.) A program contains the follwoing function

void display(int arg1, double arg2, char arg3)

{

cout << arg1 << arg2 << arg3;

}

WRITE A STATEMENT THAT CALLS THE FUNCTION AND PASSES THE FOLLOWING VARIABLE TO IT:

char name;

int age;

double income;

Explanation / Answer

1)

50 60 50

ptr points to x

*ptr++ increment value in address in ptr i.e x

Hence ,x=51

Again ptr pointer to location of y

Assigned x to pointer ,hence y=51

Again ptr points to location of z

Then,*ptr=70*2=140

Hence,z=140

Final output : 51 51 140

2)

This function has been called 1 times
This function has been called 1 times
This function has been called 1 times
This function has been called 1 times
This function has been called 1 times

This is because the static local variable is deleted every time the function ends.hence same output is observed.

3)

name='s'

age=20

income=100000.0

display(age,income,name);

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