Password Decryption - Python Solution

This Python program is designed to decrypt a password string. The password string is encrypted in a specific way, and the program uses a series of operations to reverse this encryption and return the original password.

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Here is the Password Decryption - Python Solution from HackerRank using CodeRankGPT:

The decryption process works by first converting the string into a list of characters. It then iterates over the list, looking for digits that are not zero. Once it finds a zero, it replaces it with the last non-zero digit found. It then continues to iterate over the list, looking for asterisks. When it finds an asterisk, it swaps the two characters before it. Finally, it removes all asterisks from the list and joins the list back into a string to return the decrypted password.


import math
import os
import random
import re
import sys

def decryptPassword(s):
    s = list(s)
    i = 0
    while i < len(s) and s[i].isdigit() and s[i] != "0":
        i += 1
    for j, k in enumerate([l for l in range(i, len(s)) if s[l] == "0"]):
        s[k] = s[i - j - 1]
    for j in range(i, len(s)):
        if s[j] == "*":
            s[j - 1], s[j - 2] = s[j - 2], s[j - 1]
    return "".join(s[i:]).replace("*", "")

if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    s = input()

    result = decryptPassword(s)

    fptr.write(result + '\n')

    fptr.close()

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