-- no error checking on command line arguments: 	-5
 -- didn't use JRB trees:				-100
 -- doesn't compile/compiles but does nothing:		-50
 -- wrong output (handicaps are wrong):			-50
 -- output correct but not sorted by handicap:		-10
 -- didn't detect players with < 20 scores:		-10
 -- didn't detect non-existing golf course:		-10
 -- can't handle many entries/big input file		-10
 -- inadequate commenting				-15

 -- missing return value checking on malloc		-5
 -- no input file format error checking			-5