How to check for palindromes in python

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OHIOLee answered on February 16, 2021 Popularity 9/10 Helpfulness 5/10

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How to check for palindromes in python

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def is_palindrome(s):
  reverse = s[::-1]
  if (s == reverse):
    return True
  return False

s1 = 'racecar'
s2 = 'hippopotamus'

print('\'racecar\' a palindrome -> {}'.format(is_palindrome(s1)))
print('\'hippopotamus\' a palindrome -> {}'.format(is_palindrome(s2)))


# output

# 'racecar' is a palindrome -> True
# 'hippopotamus' is a palindrome -> False

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Contributed on Jul 13 2022

OHIOLee

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python check palindrome

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s = input('enter string: ')
def palindrome(string):
    x = ""
    for i in string:
        x = i + x
    return x

if s == palindrome(s):
    print('its a palindrome')
else:
    print('its not a palindrome')

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Contributed on Nov 26 2022

Adam, the developer

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python palindrome string

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s = "001100"

if s == s[::-1]:
    print("palindrome string")
else:
    print("Not a palindrome string.")

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Contributed on May 21 2022

Excited Earthworm

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python palindrome

Comments(1)

def palindrome(a):
    return a == a[::-1]

palindrome('radar') 		# True

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Contributed on Feb 16 2021

VasteMonde

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How to check palindrom in python

Comments(1)

myString = "aba"
if myString == myString[::-1]:
	print("The string '" + myString + "' is a palindrome")
else:
	print("The string '" + myString + "' is not a palindrome")

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Contributed on Jun 12 2022

Muhammad Mumtaz

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python palindrome program

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n = input("Enter the word and see if it is palindrome: ") #check palindrome
if n == n[::-1]:
    print("This word is palindrome")
else:
    print("This word is not palindrome")
    print("franco")

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Contributed on Jul 31 2021

Prickly Parrot

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check palindrome in python

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string = input("Type a string: ")
if string[::-1] == string: 
	print(string,"This string is Palindrome")
else:
	print(string,"This string is not Palindrome")

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Contributed on Jul 12 2022

The Legend Of Hridoy

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python palindrome

Comment

def isPalindrome(s):
    return s == s[::-1]
 
 
# Driver code
s = "malayalam"
ans = isPalindrome(s)
 
if ans:
    print("Yes")
else:
    print("No")

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Contributed on Jun 16 2022

Aravind Krishna R

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how to check a string is palindrome or not in python

Comment

s = "001100"

if s == s[::-1]:
    print(s, "is a Palindrome string.")
else:
    print("Not a palindrome string.")

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Contributed on May 21 2022

Excited Earthworm

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How to check if a given string is a palindrome, in Python?

Comment

"""
This implementation checks whether a given
string is a palindrome. A string is 
considered to be a palindrome if it reads the
same forward and backward. For example, "kayak"
is a palindrome, while, "door" is not. 

Let n be the length of the string

Time complexity: O(n), 
Space complexity: O(1)
"""
def isPalindrome(string):
    # Maintain left and right pointers
    leftIdx = 0
    rightIdx = len(string)-1
    while leftIdx < rightIdx:
        # If chars on either end don't match
        # string cannot be a palindrome
        if string[leftIdx] != string[rightIdx]:
            return False
        # Otherwise, proceed to next chars
        leftIdx += 1
        rightIdx -= 1
    return True

print(isPalindrome("kayak"))  # True
print(isPalindrome("door"))  # False

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Contributed on May 25 2022

Wissam

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How to check for palindromes in python

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How to check if a given string is a palindrome, in Python?

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