INITIALIZING ONE-DIMENSIONAL ARRAY
In C, memory spaces are not cleared from their previous value when variables or arrays are created.
Because of this, it is generally good programming practice to not only initialize your variables but to also initialize your arrays.
There are two ways to initialize your arrays: within the array declaration and outside of the array declaration.
In the first way, you simply assign one or more comma-separated values within braces to the array in the array’s declaration.