Processing byte array backwards

[C5H12O5]

Check List:

• Tests pass (./test.sh <username> shows no differences between expected and actual outputs)
• All formatting changes by the build are committed
• Your launch script is named calculate_average_<username>.sh (make sure to match casing of your GH user name) and is executable
• Output matches that of calculate_average_baseline.sh
• For new entries, or after substantial changes: When implementing custom hash structures, please point to where you deal with hash collisions (line number)

Execution time:

• 25.38s user 3.44s system 342% cpu 8.406 total << now
• 45.87s user 2.82s system 530% cpu 9.185 total (last submission)
• 182.35s user 4.36s system 99% cpu 3:06.76 total (reference implementation)

Notes:

• add comments and improve code readability
• processing byte array backwards
• using bitwise operation to find specific byte (inspired by thomaswue)
• deal with hash collisions: CalculateAverage_C5H12O5.java:245

[gunnarmorling]

00:07.680 now, nice.