[B! perl] smoking186ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

smoking186 id:smoking186

perlã«é–¢ã™ã‚‹smoking186ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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Perl Regular Expression Matching is NP-Hard
Matching ordinary regular expresions can be done in polynomial time, proportional to MN, where M is the length of the regular expression and N is the length of the string to be matched. The usual method for this is: Parse the regular expression and construct an equivalent finite automaton (FA), which will have O(M) states; then simulate the action of the FA on the input, which takes O(MN) time. My
smoking186 2007/08/10
_Complexity

perl

NP-hard
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smoking186 2007/08/10
NP-hardã£ã¦

_Complexity

perl

NP-hard
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smoking186 2006/10/17
programming

perl
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smoking186 2006/06/20
KENTã®æœ¬ã‚’ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ã™ã‚‹id:j*ãŸã¡.

perl
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japan.linux.com | GD::Graphã‚’ä½¿ã£ãŸPerlã‚°ãƒ©ãƒ•ç”Ÿæˆ
Perlã®GD::Graphãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã¯ã€ãƒ‡ãƒ¼ã‚¿ã‚’ã™ã°ã‚„ãç°¡å˜ã«ã‚°ãƒ©ãƒ•ã‚£ã‚«ãƒ«ã«è¡¨ç¾ã™ã‚‹ãŸã‚ã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢é–‹ç™ºè€…å‘ã‘ãƒ„ãƒ¼ãƒ«ã ã€‚ã‚‚ã¨ã‚‚ã¨ã¯Martien VerbruggenãŒ1995å¹´ã«ä½œæˆã—ãŸã“ã®ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸ã¯ã€éžå¸¸ã«æŸ”è»Ÿã§äººæ°—ã®é«˜ã„ãƒ„ãƒ¼ãƒ«ã¸ã¨æˆé•·ã—ãŸã€‚ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ãªã©ã‹ã‚‰å‹•çš„ãƒ‡ãƒ¼ã‚¿ã‚»ãƒƒãƒˆã‚’å³åº§ã«å–å¾—ã—ã¦è¡¨ç¤ºã—ãŸã„ã¨ã„ã†å ´åˆã«å¥½é©ã§ã‚ã‚‹ã€‚ä¼æ¥ã®ã‚¤ãƒ³ãƒˆãƒ©ãƒãƒƒãƒˆã§åºƒãä½¿ã‚ã‚Œã¦ãŠã‚Šã€ã¾ã•ã«çµŒå–¶é™£ãŒæœ›ã‚€ã‚ˆã†ãªå½¢å¼ã§ãƒ‡ãƒ¼ã‚¿ã‚’ç¤ºã™ã‚°ãƒ©ãƒ•ã‚’ç”Ÿæˆã§ãã‚‹ã®ã§ã€å¤šãã®Webç®¡ç†è€…ãŒåˆ©ç”¨ã—ã¦ã„ã‚‹ã€‚ GD::Graphã¯ã€ä¸‹ä½ãƒ¬ãƒ™ãƒ«ã®ãƒ¦ãƒ¼ãƒ†ã‚£ãƒªãƒ†ã‚£ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«é›†åˆã®ä¸Šã«æˆã‚Šç«‹ã£ã¦ã„ã‚‹ã€‚ã“ã‚Œã‚‰ã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã®æœ€ã‚‚åŸºç¤Žçš„ãªéƒ¨åˆ†ã¯ã€Thomas Boutellã®GDã‚°ãƒ©ãƒ•ã‚£ãƒƒã‚¯ã‚¹ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã‚ã‚Šã€å„ç¨®ã®ã€ç·šã€å¤šè§’å½¢ã€ãƒ†ã‚ã‚¹ãƒˆã‚’ãƒ¡ãƒ¢ãƒªå†…ã‚«ãƒ³ãƒã‚¹ã«æç”»ã™ã‚‹æ§‹é€ ã‚’æä¾›ã™ã‚‹ã€‚ã“ã®ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®ä¸Šã«ã€2ã¤ã®Perlãƒ¢ã‚¸ãƒ¥ãƒ¼
smoking186 2006/01/06
perl
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Junya Kondo / Text-Hatena-0.20 - search.cpan.org
Tools Download (8.91KB) MetaCPAN Explorer Permissions Subscribe to distribution Install Instructions Dependencies Parse::RecDescent Regexp::Assem ble Test::Base Test::More and possibly others Reverse dependencies CPAN Testers List Dependency graph Permalinks This version Latest version
smoking186 2005/09/29
Hatena

programming

perl
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1