Solution to Practice Problem Set 2
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1(a) Output with the line changed: 110001.

This is not the binary equivalent of 35; it is the binary 
equivalent of 49.

The change is causing the program to output the reverse of the binary 
equivalent of the given nonnegative integer.

1(b)
The following error message is produced:

Traceback (most recent call last):
  File "None", line 4, in <module>
TypeError: unsupported operand type(s) for +: 'int' and 'str'

The reason for the error message is that the change cause the program
to add an int type object to a str type object, which is not supported
in Python.


2.
n = int(raw_input("Type a positive integer. "))
reverse = ""
while n > 0:
    reverse = reverse + str(n % 10)
    n = n/10
    
print reverse

3(a)
Line 1 10
Line 2 10

3(b)
Line 2 11
Line 3 11

3(c)
Line 2 21
Line 3 21

4.
n = int(raw_input("Enter a number: "))

evenCount = 0
oddCount = 0
while n > 0:
    if n % 2 == 0:
        evenCount = evenCount + 1
    else:
        oddCount = oddCount + 1
    n = int(raw_input("Enter a number: "))

print "Even numbers:", evenCount, " Odd numbers:", oddCount

5.
Line 2
Line 2
Line 1

6.
1. int 8
2. float 8.5
3. float 8.0
4. str "8.5"
5. str "hello100"
6. str "10 + 20"
7. bool False
8. float 2.0
9. int 337
10. int 34
11. bool True
12. float 17.0
13. float 8.0
14. bool True
15. bool True
16. str "0 + 20"
17. float 2.0
18. float 300.1
19. float 1.0
20. float 12.0

7. 
Line 1 10 15
Line 2 10 14
Line 2 11 13
Line 2 12 12