Answered: Write a function in Python that…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a function in Python that determines if any string of any length is a palindrome. Be as efficient as you can.

Expert Solution

Step 1

A string is known as palindrome if it is same read from forward and backward. We can use two methods to check string is palindrome or not. In the first method, we use the negative index (-1), which is used to read string from backward, so we compare a string with their reverse string using string[::-1], if both are equal, then string is palindrome.
In the second method, we compare first index value with last index value and repeat while first < last , if all positions are equal, then string is palindrome.

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