Word unscrambling using python

Question

The following code scrambles the text randomly using step size, i want to write a function to unscramble and get the original string how to do it.

def scramble(plain):
    cipher = ""
    step = 7
    for x in range(0, step):
        for y in range(x, len(plain), step):
            cipher += plain[y]
    return cipher

It doesn't scramble it "randomly", it scrambles it with a very noticeable pattern. Try scrambling the letters of the alphabet, starting with the first 7 letters, then adding one letter at a time, and see the resulting pattern. Look for the pattern, and try writing the unscramble function yourself. If you have specific issues with your unscrambling code, we can try to help. — Gerrat, Dec 04 '16 at 05:43
sorry i recognized the pattern could u help me figure it out how to reverse it I'm unable get a hold of it any clue would be appriciated — harsha, Dec 04 '16 at 08:48

score 0 · Answer 1 · answered Dec 05 '16 at 05:21

Just reverse the pattern:

def unscramble(cipher):
    plain = [""] * len(cipher)
    step = 7
    i = 0
    for x in range(0, step):
        for y in range(x, len(plain), step):
            plain[y] = cipher[i]
            i += 1
    return ''.join(plain)

Word unscrambling using python

1 Answers1