c language program using dragon 12 board. I need help with this assignment I don't understand what should I do and where to start.

Do Problem 5.1 on page 27 of the text. Do Problem 5.2 on page 27 of the text. draw a flowchart on a paper., Implement a digital combination lock. The code is an 8-bit number that, when set correctly on the 8 DIP switches, will display "OPEn" on the four 7-segment display. The displays should otherwise be displaying "--" Repeat Problem for but using the hex keypad. "OPEn" should occur when a user enters a 4 digit code correctly on the hex keypad