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Shrink needed (Posted on 2006-10-18) Difficulty: 2 of 5
A file compressor is great for shrinking stored files, but it depresses me whenever I see a file grow instead of shrink. So what I am looking for is a file compression algorithm that never inflates any files, although it is allowed that some files (not all of course!) have the same length after "compression". Ideally it should work on files of all sizes, but I would be satisfied with a compressor that operates only on files larger than 1MB. Can you provide such an algorithm? No programming knowledge is required for this problem.

See The Solution Submitted by JLo    
Rating: 3.6667 (6 votes)

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  Subject Author Date
Provably impossibleJort Bloem2006-10-23 22:24:16
Some Thoughtsre(3): No impossibility -- doubt itFederico Kereki2006-10-23 08:17:13
Some Thoughtsre(3): Any compressor will do -- doubt itFederico Kereki2006-10-23 08:15:47
loopholesTristan2006-10-22 17:22:30
re(2): No impossibility -- doubt itvswitchs2006-10-22 11:53:14
re(2): Any compressor will do -- doubt itArt M2006-10-22 03:53:01
SolutionA tricky way outFederico Kereki2006-10-21 14:34:11
Some Thoughtsre: Any compressor will do -- doubt itFederico Kereki2006-10-21 07:27:27
Any compressor will doArt M2006-10-21 03:00:50
Some Thoughtsre: No impossibility -- doubt itFederico Kereki2006-10-20 22:23:09
Thought on text compressionbrianjn2006-10-20 21:32:33
SolutionNo impossibilityvswitchs2006-10-20 16:50:57
Invent an impossibility?brianjn2006-10-20 11:30:45
SolutionNo zipper existsOld Original Oskar!2006-10-20 09:41:12
Themesbrianjn2006-10-20 09:31:24
SolutionImpossibility #3e.g.2006-10-20 08:23:45
Reviewbrianjn2006-10-20 04:17:38
Some Thoughtsre: IdeasFederico Kereki2006-10-19 14:03:29
re(2): IdeasJer2006-10-19 11:26:18
re: IdeasLarry2006-10-18 20:45:07
SolutionImpossibility #2e.g.2006-10-18 13:29:35
IdeasJer2006-10-18 12:04:55
Some Thoughtsre: Impossibility?Federico Kereki2006-10-18 10:11:31
re: Impossibility?brianjn2006-10-18 09:41:19
Some ThoughtsLightly Squeeze Mebrianjn2006-10-18 09:30:57
SolutionImpossibility?e.g.2006-10-18 09:03:16
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