Question

Write code to check a string is palindrome or not? In python

Answer 1

Answer:

• # Program to check if a string is palindrome or not.
• my_str = 'aIbohPhoBiA'
• # make it suitable for caseless comparison.
• my_str = my_str. casefold()
• # reverse the string.
• rev_str = reversed(my_str)
• # check if the string is equal to its reverse.
• if list(my_str) == list(rev_str):

Explanation:

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Answer 2

Answer:

st = 'malayalam'

j = -1

flag = 0

for i in st:

   if i != st[j]:

     j = j - 1

     flag = 1

     break

   j = j - 1

if flag == 1:

   print("NO")

else:

   print("Yes")

Explanation:

This method compares the first and the last element of the string and gives the rest of the substring to a recursive call to itself.