Please read the following functions carefully and do a (tight) worst case runtime analysis. Please fully explain why the runtime bound is correct. Thanks!

A.

void snapshot(std::vector &buzzers) {

buzzers.clear(); // you don't know the history of the

// buzzers vector, so we had better

// clear it first.

// Note: the vector class over-rides the assignment operator '='

// and does an element-by-element copy from the RHS vector (the_vector)

// in this case) to the LHS vector (buzzers) in this case).

buzzers = the_queue;

}

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B.

/**

* Function: length()

* Description: returns the current number of

* entries in the queue.

*

* RUNTIME REQUIREMENT: O(1)

*/

int length() {

return the_queue.size(); // placeholder

}