Exercise 07-05:
Write a program that reads two strings and generates a third one in which the characters of the second are removed from the first.
1st string: AATTGGAA
2nd string: TG
3rd string: AAAA
Answer:
##############################################################################
# Python From Scratch
# Author: Nilo Ney Coutinho Menezes
# Editora Novatec (c) 2010-2025 - LogiKraft 2025
# Site: https://pythonfromscratch.com
# ISBN: 978-85-7522-949-1 (Paperback), 978-85-7522-950-7 (hardcover), 978-85-7522-951-4 (ebook)
#
# File: chapter 07/exercise-07-05.py.py
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first = input("Enter the first string: ")
second = input("Enter the second string: ")
third = ""
for letter in first:
if letter not in second:
third += letter
if third == "":
print("All characters were removed.")
else:
print(f"The characters {second} were removed from {first}, resulting in: {third}")