# Main
array =["pizza", "pasta", "pancakes"]
encrypted_array = encrypt(array)
display(array, encrypted_array)

def encrypt(array):
    encrypted_array = [str]*len(array)
    for i in range(len(array)):
        encrypted_string = ""
        for j in range(len(array[i])):
            ascii_val = ord(array[i][j])
            ascii_val = ascii_val + 1

            if ascii_val > 122:
                ascii_val = ascii_val - 26

            new_char = chr(ascii_val)
            encrypted_string = encrypted_string + new_char

        encrypted_array[i] = encrypted_string
    return encrypted_array

def display(array, encrypted_array):
    print("Passwords")
    for i in range(len(array)):
        print(array[i])

    print("Encrypted passwords")
    for i in range(len(encrypted_array)):
        print(encrypted_array[i])

# Main
array =["super", "study", "party"]
encrypted_array = encrypt(array)
display(array, encrypted_array)

"""
This program encrypts an array of strings (like a list of passwords) 
using a Caesar shift of +1 on lowercase letters (a–z).
Each character is converted into its ASCII code with ord(), 
shifted forward by 1, and then converted back to a character with chr().
If the value goes past 'z' (ASCII 122), it wraps back around to 'a'.
Finally, the program displays both the original and the encrypted arrays.
"""

def encrypt(array):
    # Create an empty array of the same length to store encrypted strings
    encrypted_array = [str] * len(array)
    
    # Loop through each string in the array
    for i in range(len(array)):
        encrypted_string = ""  # start empty for each string
        
        # Loop through each character of the current string
        for j in range(len(array[i])):
            # Convert the character into its ASCII number
            ascii_val = ord(array[i][j])
            
            # Add 1 to shift the character
            ascii_val = ascii_val + 1

            # If the value goes past 'z' (122), wrap around to 'a'
            if ascii_val > 122:
                ascii_val = ascii_val - 26

            # Convert the number back into a character
            new_char = chr(ascii_val)
            
            # Add the new character to the encrypted string
            encrypted_string = encrypted_string + new_char

        # Save the encrypted string in the result array
        encrypted_array[i] = encrypted_string
    
    # Return the array of encrypted strings
    return encrypted_array


def display(array, encrypted_array):
    # Print the original strings
    print("Passwords")
    for i in range(len(array)):
        print(array[i])

    print()  # blank line for readability

    # Print the encrypted strings
    print("Encrypted passwords")
    for i in range(len(encrypted_array)):
        print(encrypted_array[i])


# Main program
# Define an array of strings
array = ["pizza", "pasta", "pancakes"]

# Encrypt the array
encrypted_array = encrypt(array)

# Display original and encrypted versions
display(array, encrypted_array)