If you cannot complete the entire lab then try to complete the lab up to a certain step and make sure that your executable works up to that step. Then submit a README file that tells the TA how far you got so that the TA can appropriately grade your program.
 -- error checking on command line arguments: 	5
 -- error checking of the course file:          5
 -- error checking of the scores file:          5
 -- detecting players with < 20 scores:		5
 -- detecting non-existent golf course:		5
 -- handles many entries/big input file		10
 -- correct calculation of handicaps 		30
 -- handicaps sorted in ascending order		15
 -- good commenting and program style		20

automatic deductions
 -- failure to test whether or not files
    were properly opened	                -5
 -- doesn't compile or compiles but does 
    nothing		                       -50
 -- didn't use STL maps: that's one of the
    whole points of the lab	              -100 
 -- didn't use the sort algorithm: that's 
    another point of the lab!                 -100