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Solution: Exclusive Time of Functions

Explore how to calculate the exclusive execution time of functions running on a single-threaded CPU using stack data structures. Understand the solution approach by analyzing start and end log events, managing nested function calls, and implementing efficient stack operations in Go.

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 ...