arduino uno

problem 2 is what i am stuck on. Arsuino Uno

Problem 2: Your second design problem for this lab is to modify the code you wrote for the first design problem to add the following functionality. The code in the main function needs to execute in three modes (0.1, and 2). In mode number 0. blink only the even PINS, in mode 1, blink only the odd pins, and in mode 2, blink all the pins. Hint: Your design should include an "if statement". The decision of which mode to run should be made at compile time. Design Problems: Problem 1: Your first design problem for this lab is to add three more LEDs to pins 8, 7 and 3 (so that you now have four LEDs in total). Write a code to blink each LED in sequence; that is, blink LED at pin 12 first, at pin 8 second, at pin 7 third and pin 3 last. The wait period in between each blink should be 0.75 seconds. This process should run continuously R T w Problem 2: Your second design problem for this lab is to modify the code you wrote for the first design problem to add the following functionality. The code in the main function needs to execute in three modes (0, 1, and 2). In mode number 0, blink only the even PINS, in mode 1, blink only the odd pins, and in mode 2, blink all the pins Hint: Your design should include an "if statement". The decision of which mode to run should be made at compile time