Python Coding challenge - Day 331| What is the output of the following Python Code?

 

Explanation:

import collections:

This imports the collections module, which provides specialized container data types. One of its classes is Counter, which is used to count the occurrences of elements in a collection (like strings, lists, etc.).

counter = collections.Counter("aabbccc"):

What happens here?

The Counter class is initialized with the string "aabbccc".

It creates a dictionary-like object where the keys are the unique characters from the string, and the values are the count of occurrences of those characters.

Result:

The Counter object now looks like this:

Counter({'c': 3, 'a': 2, 'b': 2})

counter.most_common(2):

What does it do?

The most_common(n) method returns a list of the n most frequently occurring elements in the Counter object, in descending order of their counts.

Here, n = 2, so it returns the top 2 most common characters.

Result:

The result is:

[('c', 3), ('a', 2)]

This means:

'c' appears 3 times (most frequent).

'a' appears 2 times (second most frequent).

print(counter.most_common(2)):

This prints the output:

[('c', 3), ('a', 2)]

Final Output:

[('c', 3), ('a', 2)]