Absolute C++ Chapter 2 Self-Test Exercise(5)

27.

2 4 6 8 

28.

Hello 10

Hello 8

Hello 6

Hello 4

Hello 2

29.

2.000000 1.500000 1.000000 0.500000

30.

a.

for(int i=1;i<=10;i++)
{
　　if(i<5&&i!=2)
　　　　cout<<'X';
}

b.

for(int i=1;i<=10;i+=3)
　　cout<<'X';

c.

for(long n=100;n<=1000;n+=100)
　　cout<<'X';

31.

1024 1

1024 2

1024 3

1024 4

1024 5

1024 6

1024 7

1024 8

1024 9

1024 10

the last value of the log is the exponent of 2 equal the value n which is 1024  

32.1024 1

33. infinite loop

34.a.for b.while c.while d.do-while

35.infinite loop

36. stop the switch that the break statement is embeded in and the closest loop

37

1 times 10 = 10
1 times 9 = 9
.
.
.
1 times 1 = 1
2 times 10 = 20
2 times 9 = 18
.
.
.
2 times 1 = 2
3 times 10 = 30