636. Exclusive Time of Functions

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On a single-threaded CPU, we execute a program containing n functions. Each function has a unique ID between 0 and n - 1. Function calls are stored in a call stack: when a function call starts, its ID is pushed onto the stack, and when a function call ends, its ID is popped off the stack. The function whose ID is at the top of the stack is the current function being executed. Each time a function

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solution.cppC++17

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