$1.$ Write code that spawns $30$ parallel threads. Each thread is executing the print function. Please end the main program when all threads spawned are

finished. Submit two source files, one in which a lock guard is used to protect each iteration

of the for loop in print, and one where no mutex or lock guard is used. Submit also screen

shots with the execution of the two programs. Hint: store thread objects in an array.

$2.$ Write a program that spawns $4$ parallel threads. Two of the threads use one queue data

structure $($the same queue$)$ to insert randomly generated integers. The other two, extract

the integers from the queue. Protect the Queue with a mutex managed by a lock guard.

The inserting threads should generate $100$ integers each. After generating the integers, the

generating threads should end. Design a mechanism by which the extracting threads end their

execution when no more data is inserted by the generating threads because they terminated.

Output appropriate messages to identify each operation with the queue and reveal which

thread executes it$.$