loops/questions.rst
author Nishanth <nishanth@fossee.in>
Tue, 12 Oct 2010 11:26:09 +0530
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Finished using_sage_to_teach
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Objective Questions
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.. A mininum of 8 questions here. 
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1. Braces are used to indicate blocks in Python. True or False?
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   Answer: False
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#. ``for`` can iterate over 
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   a. list of numbers
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   #. list of strings
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   #. strings
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   #. tuples
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   #. all of the above
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.. I was not sure of how to frame this question. Can someone fix it?
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   Answer: all of the above
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#. ``x = range(20)``. What is x?
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   Answer: A list of numbers from 0 to 19. 
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#. ``x = range(5, 20)``. What is x?
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   Answer: A list of numbers from 5 to 19. 
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#. ``x = range(0, 20, 5)``. What is x?
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   a. [5, 10, 15, 20]
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   #. [0, 5, 10, 15, 20]
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   #. [0, 5, 10, 15]
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   #. Empty list
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   #. None of the Above
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   Answer: [0, 5, 10, 15]
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#. ``x = range(20, 5)``. What is x?
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   a. [5, 10, 15, 20]
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   #. [0, 5, 10, 15, 20]
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   #. [0, 5, 10, 15]
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   #. Empty list
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   #. None of the Above
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   Answer: Empty list
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#. ``x = range(20, 5, -1)``. What is x?
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   Answer: A list of numbers from 20 to 6.
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#. What is the output of the following code block?
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   ::
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     for i in range(1, 4):
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         for j in range(1, 4):
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             print i * j
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             break
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   Answer: 1 to 3 is printed
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#. What is the output of the following code block?
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   ::
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     for i in range(1, 4):
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         for j in range(1, 4):
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             pass
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             print i * j
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   Answer::
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     3
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#. What is the output of the following code block?
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   ::
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     for i in range(1, 4):
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         for j in range(1, 4):
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             continue
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             print i * j
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   Answer: Nothing is printed
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Larger Questions
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1. A number is called Armstrong number if the sum of cubes of its digits is
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   equal to the number itself. Find all the three digit Armstrong numbers.
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