Reverse a String Without Reversing Individual Words: An Efficient Approach

When dealing with string manipulation tasks, it’s essential to optimize the algorithms in terms of time and space complexity. In this article, we’ll explore an efficient approach to reverse a string without reversing its individual words, considering words separated by dots. We’ll provide a step-by-step explanation along with the corresponding code implementation and analyze the time and space complexity of the solution.

Algorithm

To reverse the string without reversing individual words, we can follow the following steps:

1. Split the string into individual words using the dot (‘.’) as the delimiter.
2. Reverse the order of the words.
3. Join the reversed words using dots (‘.’) as the delimiter to form the reversed string.

Code Implementation (Python)

def reverse_string_without_words(string):
 words = string.split('.')
 reversed_words = words[::-1]
 reversed_string = '.'.join(reversed_words)
 return reversed_string

Explanation

The algorithm starts by splitting the input string into individual words using the `split` method with the dot (‘.’) as the delimiter. This operation produces a…