I need help with 2 and 3. Thanks.
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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I need help with 2 and 3. Thanks.
![A str = 'racecar'
A
Question 1. Write a function that takes as input a string and returns a boolean that indicates if the string is a palindrome (return True for a palindrome). Palindromes are words
that are the same as the letter-reversed version of themselves (AHA, RACECAR, MADAM, KAYAK are examples).
:
#strstr = str.casefold()
rev=reversed (str)
if list(str)
print("True")
print("False")
else:
True
==
list (rev):
Question 2. How many words 5 letters or longer in wordlist are palindromes?
Question 3. What is the longest word in wordlist that ends in the four letters "ship"? How many words have this length?
def find_longest_word (wordslist):
word_len = []
for n in wordslist:
word_len.append((len(n), n))
word_len.sort()
return word_len [-1] [0], word_len [-1] [1]
result = wordlist("ship")
print("\nLongest word: ", result [1])
print("Length of the longest word: ", result [0])](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0724d636-1660-41e9-be6d-29c03d60387f%2F349cd037-ed3a-4c6e-93c7-94f236970d48%2F3575r1_processed.png&w=3840&q=75)
Transcribed Image Text:A str = 'racecar'
A
Question 1. Write a function that takes as input a string and returns a boolean that indicates if the string is a palindrome (return True for a palindrome). Palindromes are words
that are the same as the letter-reversed version of themselves (AHA, RACECAR, MADAM, KAYAK are examples).
:
#strstr = str.casefold()
rev=reversed (str)
if list(str)
print("True")
print("False")
else:
True
==
list (rev):
Question 2. How many words 5 letters or longer in wordlist are palindromes?
Question 3. What is the longest word in wordlist that ends in the four letters "ship"? How many words have this length?
def find_longest_word (wordslist):
word_len = []
for n in wordslist:
word_len.append((len(n), n))
word_len.sort()
return word_len [-1] [0], word_len [-1] [1]
result = wordlist("ship")
print("\nLongest word: ", result [1])
print("Length of the longest word: ", result [0])
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