Saturday 20 April 2024

Python Coding challenge - Day 180 | What is the output of the following Python Code?

 


Code:

x = {"a": 1, "b": 2}

y = {"b": 3, "c": 4}

z = {**x, **y}

Solution and Explanation:

This code is using dictionary unpacking in Python to combine two dictionaries x and y into a new dictionary z. Here's a breakdown:

x is a dictionary with keys "a" and "b", and corresponding values 1 and 2.
y is another dictionary with keys "b" and "c", and values 3 and 4.
The line z = {**x, **y} combines both dictionaries x and y into a new dictionary z. The ** syntax is used for unpacking the dictionaries. This essentially merges the key-value pairs of x and y into z. If there are duplicate keys, the values from y will overwrite the values from x.
Finally, print(z) prints the resulting dictionary z.
So, the output of the print(z) statement will be:

{'a': 1, 'b': 3, 'c': 4}
Notice that the value of "b" is 3 in the merged dictionary z, as it gets overwritten by the value from dictionary y.


print(z)

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