Testing:
-given files  (marks are deducted according to the following situation. Deduction up to 3 marks)  
              -1  the secondaryindex is not correct, i.e. some records are missing. last name duplicated. last record is not correct. 
	      -1  the list starts are not correct
              -1  the list file is not correct
	      -1  the list next are not correct
	      -1  some student numbers in list file are not correct
              -1  the searching returns wrong results
              -1  no search results returned
              -0.5  the searching couldn't find student name in upper case
              -1  crash during searching
              -1  program couldn't terminate



Style:
           -1 no comments
           -1 code not understandable




If Program runs without crashing, you will get maximum 42 marks
-addition into Secondary index file  (marks are deducted according to the following situation. Deduction up to 10 marks) 
		                     -10 no addition into Secondary index file
                                     -5  use array
		                     -4  couldn't handle the situation when the student name is already in the index
		                     -4  index is not inserted sorted by name
		                     -3  couldn't insert records properly
		                     -1  list start is not in the correct binary mode
		                     -2  list start is wrong
-addition into List file   (marks are deducted according to the following situation. Deduction up to 17 marks) 
		           -17 no addition into list file
                           -7  use array
		           -5  didn't update list start properly
		           -5  didn't update list next properly
		           -4  list is not inserted sorted by student number
		           -1  couldn't write student numeber properly
		           -1  list next is not in the correct binary mode
		           -2  list next is wrong
-searches     (marks are deducted according to the following situation. Deduction up to 10 marks)
              -10 no search
              -10 searching function is wrong
              -1  couldn't handle student name in upper case
              -6  couldn't follow the list next to find out the student number properly
              -4  couldn't seek to the right position to print out the records
              -5  didn't handle the situation when there are students with same last name
              -3  the search function is OK, but didn't seek to the right position to print out the records
              -2  the search function is OK, but the records are not handled properly
              -2  the search function is OK, but the function doesn't return the search results
              -1  the last record is searched twice
              -2  the records are not properly output
-other functionality, main processing  (marks are deducted according to the following situation. Deduction up to 5 marks)
				       -1 have more than one main program
                                       -1 couldn't get file from console




If Program runs with crashing, you will get maximum 21 marks
-addition into Secondary index file  (marks are deducted according to the following situation. Deduction up to 5 marks) 
		                     -5 no addition into Secondary index file
		                     -2 couldn't handle the situation when the student name is already in the index
		                     -2 index is not inserted sorted by name
		                     -1  couldn't insert records properly
		                     -1  list start is not in the correct binary mode
		                     -1  list start is wrong
-addition into List file   (marks are deducted according to the following situation. Deduction up to 8.5 marks)  
		           -8.5 no addition into list file
		           -3  didn't update list start properly
		           -3  didn't update list next properly
		           -2  list is not inserted sorted by student number
		           -1  couldn't write student numeber properly
		           -1  list next is not in the correct binary mode
		           -1  list next is wrong
-searches    (marks are deducted according to the following situation. Deduction up to 5 marks)
              -5  no search
              -1  couldn't handle student name in upper case 
              -3  couldn't follow the list next to find out the student number properly
              -2  couldn't seek to the right position to print out the records
              -3  didn't handle the situation when there are students with same last name
              -2  the search function is OK, but didn't seek to the right position to print out the records
              -1  the search function is OK, but the records are not handled properly
              -1  the search function is OK, but the function doesn't return the search results
              -1  the last record is searched twice
              -1  the records are not properly output
-other functionality, main processing  (marks are deducted according to the following situation. Deduction up to 2.5 marks) 
                                       -1 have a few syntax error
                                       -1 couldn't get file from console
                                       -1 have more than one main program