Search⌘ K
AI Features

Solution: Exclusive Time of Functions

Understand how to determine the exclusive execution time of functions in a single-threaded CPU scenario by leveraging stack data structures. This lesson guides you through parsing function logs, managing nested calls, and computing execution durations efficiently with a clear algorithm and time complexity analysis.

Statement

We are given an integer number, n, representing the number of functions running in a single-threaded CPU, and an execution log, which is essentially a list of strings. Each string has the format {function id}:{"start" | "end"}:{timestamp}, indicating that the function with function id either started or stopped execution at the time identified by the timestamp value. Each function has a unique ID between 00 and n1n-1 ...