Answer:
Here's a Python code that uses recursion to generate and print all possible names you and your friend can come up with based on the alphabets you both know:
def generate_names(your_alphabets, friend_alphabets, name, last_name):
if len(name) == len(your_alphabets) and len(last_name) == len(friend_alphabets):
print(name + " " + last_name)
return
if len(name) < len(your_alphabets):
for char in your_alphabets:
if char not in name:
generate_names(your_alphabets, friend_alphabets, name + char, last_name)
if len(last_name) < len(friend_alphabets):
for char in friend_alphabets:
if char not in last_name:
generate_names(your_alphabets, friend_alphabets, name, last_name + char)
your_alphabets = input().strip()
friend_alphabets = input().strip()
generate_names(your_alphabets, friend_alphabets, "", "")
Step-by-step explanation:
You can input the alphabets known by you and your friend, and this code will generate and print all possible names in lexicographically increasing order, considering that each alphabet is used exactly once in the first name and last name.