Description
Solutions
Return Records 🥝
🤘 INTERN

As an intern at Amazon, you have been assigned a task to implement the sign-in pages in the Amazon Dummy Website.

There are three sign-in pages, each with its own API:

Given a log of API requests, return the list of returns from the mock website.

Notes:

  • Initially, there are no users registered.
  • If a user is already logged in and makes a login request, the new request is unsuccessful. The original login remains active.
  • Each log is an API request and is in one of the three allowed formats.
  • The order of execution of each request is the same as the order of input.
  • The usernames and passwords are case-sensitive.

    • Function Description

    Complete the function returnRecords in the editor below.

    returnRecords has the following parameter:

  • string attempts[n]: each of the API requests

    • Returns

  • string[n]: an array of strings where #th string is the return value of the #th API request

    • ｡ﾟ🍓 ꒰ა Credit to neo݁ ໒꒱ 🍓 ｡ﾟ

    Example 1: 

    Input:  attempts = ["register user05 qwerty", "login user05 qwerty", "logout user05"]
    Output: ["Registered Successfully", "Logged In Successfully", "Logged Out Successfully"] 
    Explanation:
    
 Check out the example image above 👆

    Example 2: 

    Input:  attempts = ["register david david123", "register adam 1Adam1", "login david david123", "login adam 1adam1", "logout david"]
    Output: ["Registered Successfully", "Registered Successfully", "Logged In Successfully", "Login Unsuccessfully", "Logged Out Successfully"] 
    Explanation:
    

  • register david david123: There is not user with the username "david" registered, so the registration is successful
    • 


  • register adam 1Adam1: There is not user with the username "adam" registered, so the registration is successful 
    • 


  • login david david123: The username and the password for the user match with that in the database, so the login is successful
    • 


  • login adam 1adam1: The password("1adam1") does not match the actual password ("1Adam1"), so the login is unsuccessful
    • 


  • logout david: The user "David" is logged in currently, so the logout is successful
    •
    Constraints:
    • 1 ≤ n ≤ 105
    • 1 ≤ |username|, |password| ≤ 10 (where |s| is the length of string s)
    • username and password are alphanumeric strings, ranges [0-9, a-z, A-Z]
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    Testcase
    Result
    Case 1

    input:

    output: