1 Show the output produced by the following A int x 2 y2 if

1) Show the output produced by the following:

A:             int   x = 2, y=2;

               if( x++>2 || ++y < 3)

                     cout << x-y ;

                 else  cout << -- y ;

A:This code segment will display a value of: ___

B:                  int   x = 2, y=4;

               if( ++x >3 || y++ <= 3)

                     cout << x*y ;

               else  cout<< y-x ;

B:This code segment will display a value of:   __

C:            int   x = 2, y=2;

               if( ++x >= 3 && y++ <= 3)

                     cout <

               else  cout << ++x ;

C: This code segment will display a value of:   __

2) What value will the variable sum have after execution of the following code?

         int x=3, y=-7,   sum =1;

           if (( y / x >) > -2 ) sum= x/y ; else sum =y/++x;

3) What value will the variable total have after execution of the following code?

             int i = 1, total = 1,x=4 ;

           while ( i < 4 ) {

              total *= i +x;            

                     --x;

                    i ++ ; }

Solution

1)Question A:

int x = 2, y=2;
if( x++>2 || ++y < 3)
cout << x-y ;
else cout << --y ;

Output:

2

why?

in the if condition   ( x++>2 || ++y < 3) //( 3 > 2 || 3 < 3)

the condition fails and go to else statement and print --y; // 2

Question B:

int x = 2, y=4;
if( ++x >3 || y++ <= 3)
cout << x*y ;
else cout<< y-x ;

Output:

2

why?

in the if condition   ( ++x >3 || y++ <= 3) //( 3 > 2 || 5 <= 3)

the condition fails and go to else statement and print y - x; // 5 - 3 => 2

Question c:

int x = 2, y=2;
if( ++x >= 3 && y++ <= 3)
cout < //incomplete code
else cout << ++x ;

Output:

error

This code is incomple. what ever it might be.

this code pass the if condtion ( ++x >= 3 && y++ <= 3) //( 3 >= 3 || 3 <= 3)

Question 2:

int x=3, y=-7, sum =1;
if (( y / x >) > -2 ) // error at here
sum= x/y ;
else
sum =y/++x;

I think you need to change this code  if (( y / x >) > -2 ) to  if (( y / x) > -2 )

Output:

-1

why?

The condition fails the if condition (( y / x) > -2 ) // (-7/3) > 2

executes the else sum = y/++x; // -7/4 => -1

Question 3:

this while loop execute 3 time . each time
1 * 5 = 5

5 * 5 = 25

25 * 5 = 125

Output:

125