Introduction to Computer Science and Programming in Python

Lecture 3

1. String Manipulations

   What does the code below print?

   s = "6.00 is 6.0001 and 6.0002"
   new_str = ""
   new_str += s[-1]
   new_str += s[0]
   new_str += s[4::30] 
   new_str += s[13:10:-1]
   print(new_str)
   

   260000 close

   26100 close

   26 100 check

   nothing, it will give an error close

   6.00 is 6.0001 and 6.0002 close

   Check   Show Solution

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2. For Loops with Strings

   How many times will the code below print “common letter”?

   s1 = "mit u rock"
   s2 = "i rule mit"
   if len(s1) == len(s2):
       for char1 in s1:
           for char2 in s2:
               if char1 == char2:
                   print("common letter")
                   break
   

   0 close

   2 close

   4 close

   5 close

   6 close

   7 check

   8 close

   10 close

   Check   Show Solution

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