Assignment h3
Due: September 14, 2021

In this assignment, you have some programs that are already semi-completed, but 
they need if-else statements in order to be completed. Use the comments in the 
programs to help you figure out what to do.

The programs are as follows:

oddEven.c - determine if a number is odd or even

grade.c - determine what grade this student got

leap.c - determine whether a given year is a leap or a common year.

Working versions of these programs can be found in the "working" directory. 
Also, the manifest file is already set up for you, you do not need to modify 
them.