Write Program in C not C++ (Should Run On Linux)

Use Shared Memory

-Create 8 threads [[easy to change 2 to 12]]

-Each thread with tid 1 to 12

Odd Threads:

-compute tid factorial 1*2*3*4*5

Even Threads:

-compute tid summation 1+2+3+4+5+6

Testing: Threads can print

Final: all output from main

-Main computes sum of the thread values

- report each value

-report overall sum

Note: I Have already found a answer to this question in Chegg, which is wrong and doesn't calculates anything plus that gave me segmentation fault. Please don't give me that answer as a solution for this question. Thank you. I will give you a thumps up. Thank you in advance.