Best program for coding c?

As I remember, by default nano hasn't any syntax highlighting, but you need to set it in a config file. Within the config file you can do something like this:
you can use regex to help yourself to find a specific string. If the string matches with the regular expression, it will be highlighted with the color you specified.
The first one:
will highlight numbers as blue; the second one:
will highlight some of the keywords (Screen, Driver, Option) as green.

Visual Studio is the most preferred if you're on windows.

I like Visual Studio,i always use it

i love SX too

a piece of paper it has very good memory management;