I am a computer science student and I have an exam tomorrow on operating systems. I have the exam questions of past years and there is one scenario in a question. There are two tasks in the ready-to-run (I don’t what’s its name) queue. And the scheduling algorithm is Shortest Time to Completion First (STCF). And two semaphores, S1 and S2. Lets call the task one T1 and task two T2. Here is the sce..