encode-and-decode-tinyurl_535.py

# Note: This is a companion problem to the System Design problem: Design TinyURL.
# TinyURL is a URL shortening service where you enter a URL such as https://leetcode.com/problems/design-tinyurl and it returns a short URL such as http://tinyurl.com/4e9iAk. Design a class to encode a URL and decode a tiny URL.

# There is no restriction on how your encode/decode algorithm should work. You just need to ensure that a URL can be encoded to a tiny URL and the tiny URL can be decoded to the original URL.

# Implement the Solution class:

# Solution() Initializes the object of the system.
# String encode(String longUrl) Returns a tiny URL for the given longUrl.
# String decode(String shortUrl) Returns the original long URL for the given shortUrl. It is guaranteed that the given shortUrl was encoded by the same object.


# Example 1:

# Input: url = "https://leetcode.com/problems/design-tinyurl"
# Output: "https://leetcode.com/problems/design-tinyurl"

# Explanation:
# Solution obj = new Solution();
# string tiny = obj.encode(url); // returns the encoded tiny url.
# string ans = obj.decode(tiny); // returns the original url after decoding it.

# ---------------------------------------Runtime 49 ms Beats 58.64% Memory 16.3 MB Beats 73.55%---------------------------------------


# Time Complexity O(1)
class Codec:
    def encode(self, longUrl: str) -> str:
        """Encodes a URL to a shortened URL."""
        return longUrl.encode()

    def decode(self, shortUrl: str) -> str:
        """Decodes a shortened URL to its original URL."""
        return shortUrl.decode()