Computer Science
Predict the output:
arr = {}
arr[1] = 1
arr['1'] = 2
arr[1] += 1
sum = 0
for k in arr:
sum += arr[k]
print(sum)
Answer
Output
4
Explanation
This python program computes the sum of values of items in the dictionary.
The arr dictionary is created and initialized with two key-value pairs, arr[1] = 1 and arr['1'] = 2. After that, the value of arr[1] is incremented by 1. At this point arr = {1: 2, '1': 2}.
The program iterates through each key k in the arr dictionary and adds the value arr[k] to the sum variable.
The final value of the sum variable is printed to the console.
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