Bonus Practice Problems(Palindrome or symmetry)

 Palindrome or Symmetry (Id-2338)

Given a set of ‘n’ strings, write an algorithm and the subsequent Python code to check if the string is a Palindrome string  or Symmetry string.  A string is  said to be a palindrome string  if one half of the string is the reverse of the other half. If the length of string is odd then ignore middle character. For example, strings liril, abba are palindromes.

A string is said  to be a symmetry string if both the halves of the string are same. If the length of string is odd then ignore middle character. For example, strings khokho, abab are symmetr. If the string is palindrome then print ‘Palindrome’, if the string is a symmetry string then print ‘Symmetry’ if the string (aaa) has both property then print ‘Both property’ and print ‘No property’ otherwise. Write functions to check ‘Palindrome’ and ‘Symmetry’. Make the comparisons to be case insensitive.

Input for the problem

A number and that many number of strings

Processing involved

def palindrome(text):

    if text == (text.rstrip()[::-1]):

        return True

    else:

        return False

def symmetry(text):

    n = len(text)

    if n%2:

        for i in range(n//2):

            if text[i] != text[(n//2)+1+i]:

                return False

        return True

    else:

        for i in range(n//2):

            if text[i] != text[(n//2)+i]:

                return False

        return True

n = int(input())

for i in range(n):

    text = input().rstrip().lower()

    if palindrome(text) and symmetry(text):

        print('Both Property')

    elif palindrome(text):

        print('Palindrome')

    elif symmetry(text):

        print('Symmetry')

    else:

        print('No property')

Output for the problem

Whether string is Palindrome or Symmetric or both or none

Pseudocode

Step1:Enter the data

Step2:Split the string into two parts

Step3:Ignore the central Char if string has odd characters

Step4:If the the two halves are equal then print symmetric

Step5:If the first half anfd reverse of second half  are equal then print palindrome

Step6:If both are true then print both And if both  are false then none

Step7:End

Program:

from math import floor

def palindrome(text):

    if text == (text.rstrip()[::-1]):

        return True

    else:

        return False

def symmetry(text):

    n = len(text)

    if n%2:

        for i in range(n//2):

            if text[i] != text[(n//2)+1+i]:

                return False

        return True

    else:

        for i in range(n//2):

            if text[i] != text[(n//2)+i]:

                return False

        return True

n = int(input())

for i in range(n):

    text = input().rstrip().lower()

    if palindrome(text) and symmetry(text):

        print('Both property')

    elif palindrome(text):

        print('Palindrome')

    elif symmetry(text):

        print('Symmetry')

    else:

        print('No property')