👉 Complexity is a quantitative measure of how difficult it is to solve or process a problem. It can be defined as the amount of time and effort required to perform an operation on a given input data set, which varies depending on the complexity of the underlying mathematical operations involved in solving the problem. In the context of computer science, complexity refers to the difficulty of solving a particular computational task, such as sorting or searching. For example, sorting takes O(n log n) time and space, while searching
