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Python-Quizzes | Python Dictionary Quiz | Question 25

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Question 25:Find the output of the following program:
counter = {} 
  
def addToCounter(country): 
    if country in counter: 
        counter[country] += 1
    else
        counter[country] = 1
  
addToCounter('China'
addToCounter('Japan'
addToCounter('china'
  
print (len(counter))

                    
(A) 0 (B) 1 (C) 2 (D) 3

Answer: (D)

Explanation: The task of “len” function is to return the number of keys in a dictionary. Here 3 keys are added to the dictionary “country” using the “addToCounter” function. The keys to a dictionary are case sensitive.

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Last Updated : 17 Sep, 2020
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