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Code Block
languagepython
titleVersjon 1
linenumberstrue
alphabet = "abcdefghijklmnopqrstuvwxyz"

def encode(letter, secret):
    pos = alphabet.find(letter)
    newpos = (pos + secret)
    if newpos >= 26:
        newpos = newpos - 26
    return alphabet[newpos]

def decode(letter, secret):
    pos = alphabet.find(letter)
    newpos = (pos - secret)
    if newpos < 0:
        newpos = newpos + 26
    return alphabet[newpos]

secret = 17
message = "hello world"
output = ""
for character in message:
    if character in alphabet:
        output = output + encode(character, secret)
    else:
        output = output + character
    print(output)

secret = 17
message = "yvccf nficu"
output = ""
for character in message:
    if character in alphabet:
        output = output + decode(character, secret)
    else:
        output = output + character
    print(output)
Code Block
languagepython
titleVersjon 2
linenumberstrue
# alphabet-variablen er lagt utenfor funksjonene,
# slik at den kan brukes av dem alle
alphabet = "abcdefghijklmnopqrstuvwxyz"

def encode(letter, secret):
    pos = alphabet.find(letter)
    newpos = (pos + secret)
    if newpos >= 26:
        newpos = newpos - 26
    return alphabet[newpos]

def decode(letter, secret):
    pos = alphabet.find(letter)
    newpos = (pos - secret)
    if newpos < 0:
        newpos = newpos + 26
    return alphabet[newpos]

# run()-funksjonen samler koden som tidligere lå utenfor funksjonene
def run():
    message = "hello world"
    secret= 17
    output = ""
    for character in message:
        if character in alphabet:
            output = output + encode(character, secret)
        else:
            output = output + character
        print(output)
    message = "yvccf nficu"
    output = ""
    for character in message:
        if character in alphabet:
            output = output + decode(character, secret)
        else:
            output = output + character
        print(output)

# her kalles samlefunksjonen, som vi vil kalle "hovedprogramfunksjonen"
run()

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