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Exclusive Time of Functions

Understand how to determine the exclusive time each function spends executing in a single-threaded CPU by processing start and end logs. Explore stack-based methods to accurately track active function times, handle nested calls, and calculate overall runtimes efficiently.

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 ...