I didn't know what time complexity is.

Hi there!

Time complexity is a way to understand how an algorithm's runtime increases as the input size grows. It helps us compare the efficiency of different algorithms, especially in terms of speed.

You’ve probably seen that some methods are faster than others—time complexity lets us describe and analyze those differences using big O notation (like O(n), O(log n), etc.).

By learning time complexity, you'll be able to write more efficient code, which becomes crucial as the problems you tackle get larger. Hope that helps! Feel free to ask if you have more questions.