Chapter 1: [C] Evaluate the following expressions and show their hierarchy.

(a)  g = big / 2 + big * 4 / big - big + abc / 3 ;
(abc = 2.5, big = 2, assume g to be a float)

2 / 2 + 2 * 4 / 2 - 2 + 2.5 / 3;  

1 + 2 * 4 / 2 - 2 + 2.5 / 3;

1 + 8 / 2 - 2 + 2.5 / 3;

1 + 4 - 2 + 2.5 / 3;

1 + 4 - 2 + 0; 

 5 - 2 + 0;

3+ 0

3

so

g = 3

(b)  on = ink * act / 2 + 3 / 2 * act + 2 + tig ;
(ink = 4, act = 1, tig = 3.2, assume on to be an int)

4 * 1 / 2 + 3 / 2 * 1  + 2 + 3.2

4 / 2 + 3 / 2 * 1  + 2 + 3.2

2 + 3 / 2 * 1  + 2 + 3.2

2 + 1 * 1  + 2 + 3.2 

2 + 1  + 2 + 3.2

3 + 2 + 3.2

5  + 3.2

  
8

so

on = 8

(c)  s = qui * add / 4 - 6 / 2 + 2 / 3 * 6 / god ;
(qui = 4, add = 2, god = 2, assume s to be an int)

4 * 2 / 4 - 6 / 2 + 2 / 3 * 6 / 2 

8 / 4 - 6 / 2 + 2 / 3 * 6 / 2 

2 - 6 / 2 + 2 / 3 * 6 / 2 

2  - 3 + 2 / 3 * 6 / 2 

2 - 3 + 0 * 6 / 2 

2 - 3 + 0 / 2

2 - 3 + 0 

-1 + 0

-1 

so

s= -1

 
(d)  s = 1 / 3 * a / 4 - 6 / 2 + 2 / 3 * 6 / g ;
(a = 4, g = 3, assume s to be an int)

1 / 3 * 4 / 4 - 6 / 2 + 2 / 3 * 6 / 3

0 * 4 / 4 - 6 / 2 + 2 / 3 * 6 / 3 

0 / 4 - 6 / 2 + 2 / 3 * 6 / 3 

0 - 6 / 2 + 2 / 3 * 6 / 3 

0 - 3 + 2 / 3 * 6 / 3

0 - 3 + 0 * 6 / 3

0 - 3 + 0 / 2

  
0 - 3 + 0

-3 +0

-3 

so 

s = -3