A company currently pays a fixed sum for the use of a particular licensed software package.   In determining if it has a good deal it decides to calculate its maximum use of the software from its license management log file.

Assume the software's licensing daemon faithfully records a checkout event when a copy of the software starts and a checkin event when the software finishes to its log file.

An example of checkout and checkin events are:

 License OUT @ 2008/10/03_23:51:05 for job 4974
 ...
 License IN  @ 2008/10/04_00:18:22 for job 4974



Task

Save the 10,000 line log file from    here   into a local file, then write a program to scan the file extracting both the maximum licenses that were out at any time, and the time(s) at which this occurs.

Mirror of log file available as a zip here (offsite mirror).




open "c:\data\temp\logFile.txt" for input as #f
while not(eof(#f))
  line input #f, a$
  if word$(a$,2," ") = "IN" then count = count - 1 else count = count + 1
  maxCount = max(maxCount,count)
wend
open "c:\data\temp\logFile.txt" for input as #f
while not(eof(#f))
  line input #f, a$
  if word$(a$,2," ") = "IN" then count = count - 1 else count = count + 1
  if count = maxCount then theDate$ = theDate$ + " | " + word$(a$,4," ") + " Job:";word$(a$,7," ")
wend
print maxCount;" ";theDate$