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1991-04-30
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DDJ Data Compression Contest
Entry Form
Name _______Urban Koistinen______________________________________
Address ____md85-epi@dront.nada.kth.se___________________________
Phone_______+46-86615313_________________________________________
Please include the following information about your entry:
Hardware
platform__32 bit integer_, sun4________________________________
Operating system (and
version)__Unix (any, uses getchar(),putchar())_________________
Compiler (and version)
gcc (any)______________________________________________________
Instructions on how to build the executable from the source:
make__________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________
Command line needed to compress the input
file:_ddj <FILENAME >FILENAME.ddj_____________________
______________________________________________________
Compression ratios for sample test data:
ASCII text files: Compression speed:10 seconds__
j.txt 5076 Extraction speed:_10 seconds__
Executable data Compression speed:_O(n)_______
Extraction speed:__same_______
Graphics files Compression speed:_O(size)____
Extraction speed:__O(size)____
Upon entering the contest, I grant to Dr. Dobb's Journal the right to
publish the submission in whole or in part in DDJ, over DDJ-
affiliated online information services, or on floppy disk. DDJ also
has the right to reprint this same submission at any future date,
either separately (i.e., as a reprint) or in bound book form.
Signature______________________________
Date___30 Apr 1991_________________