What will be the output of the following program:dictionary = {}dictionary[1] = 1dictionary['1'] = 2dictionary[1] += 1 sum = 0for k in dictionary: sum += dictionary[k] print (sum)
Question
What will be the output of the following program:dictionary = {}dictionary[1] = 1dictionary['1'] = 2dictionary[1] += 1 sum = 0for k in dictionary: sum += dictionary[k] print (sum)
Solution
The output of the program will be 4. Here's how:
- An empty dictionary is created.
- The integer 1 is added as a key to the dictionary with a value of 1. So, the dictionary is now {1: 1}.
- The string '1' is added as a key to the dictionary with a value of 2. The dictionary is now {1: 1, '1': 2}. Note that 1 and '1' are different keys because one is an integer and the other is a string.
- The value of the key 1 is incremented by 1. The dictionary is now {1: 2, '1': 2}.
- A variable sum is initialized to 0.
- A for loop is used to iterate over each key in the dictionary. The value of each key is added to the sum.
- The sum of the values is 2 (from key 1) + 2 (from key '1') = 4.
- The print statement outputs the sum, which is
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