Write a program called tenthreads that uses 10 threads to increment a shared variable. each thread must loop 6 times, incrementing the shared variable by its thread id (tid) in every iteration of the loop. once a thread has finished looping, print the id of the thread saying “thread [id] has finished.” it is important to make use of mutexes so that only one thread is incrementing the shared variable at a time. output the value of the shared variable once all threads have finished incrementing it. before submission, make sure you clean up the directories so that no miscellaneous files are kept around in the submission. (grade would be deducted if useless files are found in the homework directories.) include the source code and the makefile in the submission.

Carlos, an algebra teacher, is creating a series of powerpoint presentations to use during class lectures. after writing, formatting, and stylizing the first presentation, he would like to begin writing the next presentation. he plans to insert all-new content, but he wants to have the same formatting and style as in the first one. what would be the most efficient way for carlos to begin creating the new presentation? going under the file tab and opening the first presentation, deleting all content from each page, and adding new content going under the file tab and clicking on new in the left pane, then choosing new from existing going under the design tab and clicking on themes, then selecting the theme that was used for the first template going under the design tab and opening the template that was created for the first presentation