21. Write two algorithms in pseudocode (or in a computer language) for the FSMS related to the Stop-and-Wait protocol (Figure 13.20).

This is some code in C for quicksort. The quicksort works correctly, but I am trying to implement multithreading. I am trying to run the recursive calls in parallel with a limit on how much threads can be running at one time (set by the global variable 'maximumThreads'). My logic is incorrect with managing how many threads can be ran at the same time. The part that I need you to look at is after the for loop in quick sort, where I have my logic for the mutex and the conditional variable. Right now when I run my code, the program runs without stopping. I would like help with correctly implementing this.   #include <stdlib.h>#include <string.h>#include <pthread.h>#include <stdio.h>#define SORT_THRESHOLD 40typedef struct _sortParams {char** array;int left;int right;int* currentThreads;pthread_mutex_t* mutex;pthread_cond_t* cond_var} SortParams;static int maximumThreads; /* maximum # of threads to be used *//* This is an implementation of insert sort, which although…

Java - Describe a case where quicksort will result in quadratic behavior.

Describe in one synthetic sentence (one or two verbs) what the following assembly code does: O LDA 8 1 LDB 9 2 INP 8 3 INP 9 4 ADD 5 STR 10 6 PNT 10 7 STP 8 10 9 20 10