Counting Even and Odd Numbers in Nested Lists Using Recursive Function

Using Recursive Function to Count Even and Odd Numbers

Recursive functions are functions that call themselves in order to solve a problem. In the context of counting even and odd numbers in a nested list, a recursive function can be used to iterate through the nested structure and accurately determine the number of even and odd numbers present.

The recursive function count_even_odd() takes a nested list as an input argument and recursively counts the number of even and odd numbers at any level of the nested list. It traverses through the nested structure, checking each element along the way.

Process of Counting Even and Odd Numbers

When the function encounters an element that is a list within the nested list, it calls itself recursively on that sublist to further explore the elements within it. This process continues for each nested level, allowing the function to delve into the deepest levels of nesting.

If the function encounters an element that is a number, it determines whether the number is even or odd. It then increments the corresponding count of even or odd numbers based on the classification of the number.

Returning the Count of Even and Odd Numbers

After examining all elements in the nested list, the function returns a tuple containing the count of even numbers and the count of odd numbers found in the entire nested list. This tuple provides a comprehensive summary of the even and odd number distribution within the nested structure.

By utilizing a recursive approach, the count_even_odd() function is able to handle nested lists of varying depths and accurately track the counts of even and odd numbers at each level. This flexible and dynamic method allows for a detailed analysis of number distributions within complex nested structures.