Question

USING PYTHON. Thank you in advance

Write a program that allows the user to enter a series of string values into a list. When the user enters the string ‘done’, stop prompting for values. Once the user is done entering strings, create a new list containing a palindrome by combining the original list with the content of the original list in a reversed order.

Sample interaction:

Enter string: My

Enter string: name

Enter string: is

Enter string: Sue

Enter string: done

The palindrome is: My name is Sue Sue is name My

Answer 1

Implement the program as follows:

1. initialize an empty list, string_list
2. read first string, value from user
3. repeat until value is not "done"
4. append value to string_list
5. read next string value from user
6. initialize another empty list, new_palin_list
7. for each value in string_list, append it to new_palin_list
8. for each index in string_list, index varies from last to first
9. add string_list[index] to new_palin_list
10. print output message and print elements in new_palin_list

Program:

Note: Please double-check the indentation using the screenshot provided as a reference

string_list = []                                # initialize an empty list, string_list
value = input("Enter string: ")                 # read first string, value from user
while value != "done":                          # repeat until value is not "done"
    string_list.append(value)                   # append value to string_list
    value = input("Enter string: ")             # read next string value from user
    
new_palin_list = []                             # initialize another empty list, new_palin_list
for value in string_list:                       # for each value in string_list, append it to new_palin_list
    new_palin_list.append(value)
    
for index in range(len(string_list)-1, -1, -1): # for each index in string_list, index varies from last to first
    new_palin_list.append(string_list[index])   # add string_list[index] to new_palin_list
    
print("The Palindrome is: ", end='')            # print output message and print elements in new_palin_list
for value in new_palin_list:
    print(value, end=' ')

Screenshot:

Output:

Please don't forget to give a Thumbs Up.