What is the length of s?s = set()s.add("Sikandar")s.update("Sikandar")print( len(s) )
Question
What is the length of s?s = set()s.add("Sikandar")s.update("Sikandar")print( len(s) )
Solution
The length of the set s is 9. Here's why:
s = set()creates an empty set.s.add("Sikandar")adds the string "Sikandar" to the set. At this point, the setscontains one item, which is "Sikandar".s.update("Sikandar")adds each character in the string "Sikandar" to the set. In Python, sets are collections of unique elements. So, if a character is already in the set, it won't be added again. The string "Sikandar" has 8 unique characters, including the space.- Therefore, after the update operation, the set
scontains 9 unique items: the string "Sikandar" and each of the 8 unique characters in "Sikandar". print( len(s) )prints the number of items in the set, which is 9.
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