In Meta embedded systems, components such as sensor pipelines or device telemetry often use a fixed-size circular buffer to pass data between producers and consumers. Implement the core buffer operations for a bounded circular buffer and return the results of a sequence of commands.
Write a function that simulates a circular buffer of capacity capacity. The buffer stores integers and supports these commands in order:
"push", value — insert value at the tail if the buffer is not full; otherwise return false for that command."pop" — remove and return the oldest value if the buffer is not empty; otherwise return -1."peek" — return the oldest value without removing it; return -1 if empty."size" — return the current number of elements.Use a fixed-size array with wraparound indexing. The goal is to model the core logic that a thread-safe C circular buffer would protect with a mutex, while keeping this interview problem focused on correct buffer behavior.
def circular_buffer_results(capacity, operations):