finished exercises 1-6 and 1-7
treeb4b8e02fb300914b1331911ffc4b5cbcdeebfe5b
-rw-r--r-- 571 celfahr.c
-rw-r--r-- 559 fahrc.c
-rw-r--r-- 185 getcharvals.c
-rw-r--r-- 63 hello.c
-rw-r--r-- 301 reversefahrc.c