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

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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

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