Write a C program that will increment a counter to 20 using a for loop 10 times with one increment. The program will split the work between two threads. Then printout the counter which shows the result. Note: you will need to use pthread_create, pthread_mutex_unlock, pthread_mutex_lock, and pthread_join. in Write a C program that will increment a counter to 20 using a for loop 10 times with one increment. The program will split the work between two threads. Then printout the counter which shows the result. Note: you will need to use pthread_create, pthread_mutex_unlock, pthread_mutex_lock, and pthread_join . in https://rextester.com