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Solution: Exclusive Time of Functions

Explore how to determine the exclusive execution time of multiple functions running on a single-threaded CPU by using stack data structures. Understand how to process function start and end logs, manage nested calls, and compute time accurately by simulating the CPU's execution flow.

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 ...