{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T03:45:58Z","timestamp":1772163958515,"version":"3.50.1"},"publisher-location":"New York, NY, USA","reference-count":7,"publisher":"ACM","license":[{"start":{"date-parts":[[2004,6,28]],"date-time":"2004-06-28T00:00:00Z","timestamp":1088380800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2004,6,28]]},"DOI":"10.1145\/1044550.1041664","type":"proceedings-article","created":{"date-parts":[[2005,8,3]],"date-time":"2005-08-03T04:31:47Z","timestamp":1123043507000},"page":"83-84","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["An alternative problem for backtracking and bounding"],"prefix":"10.1145","author":[{"given":"Timothy J.","family":"Rolfe","sequence":"first","affiliation":[{"name":"Eastern Washington University, Cheney, Washington"}]},{"given":"Paul W.","family":"Purdom","sequence":"additional","affiliation":[{"name":"Indiana University, Bloomington, Bloomington, Indiana"}]}],"member":"320","published-online":{"date-parts":[[2004,6,28]]},"reference":[{"key":"e_1_3_2_1_1_1","unstructured":"Dean S. Clark \"A Combinatorial Theorem on Circulant Matrices\" Amer. Math. Monthly Vol. 92 No. 10 (December 1985) pp. 725 ff. For those whose institutions are participants in JSTOR (Journal STORage) http:\/\/www.jstor.org\/browse\/#Mathematics provides access to this article --- select American Mathematical Monthly navigate to Vol. 92 No. 10 and search for \"Clark\". He later coauthored a paper on n-entry circular permutations. Dean S. Clark and Stanford S. Bonan \"Experimental Gambling System\" Mathematics Magazine Vol. 60 No. 4 (October 1987) pp. 217 ff. Again http:\/\/www.jstor.org\/browse\/#Mathematics provides access --- select Mathematics Magazine navigate to Vol. 60 No. 4 then search for \"Clark\".  Dean S. Clark \"A Combinatorial Theorem on Circulant Matrices\" Amer. Math. Monthly Vol. 92 No. 10 (December 1985) pp. 725 ff. For those whose institutions are participants in JSTOR (Journal STORage) http:\/\/www.jstor.org\/browse\/#Mathematics provides access to this article --- select American Mathematical Monthly navigate to Vol. 92 No. 10 and search for \"Clark\". He later coauthored a paper on n-entry circular permutations. Dean S. Clark and Stanford S. Bonan \"Experimental Gambling System\" Mathematics Magazine Vol. 60 No. 4 (October 1987) pp. 217 ff. Again http:\/\/www.jstor.org\/browse\/#Mathematics provides access --- select Mathematics Magazine navigate to Vol. 60 No. 4 then search for \"Clark\"."},{"key":"e_1_3_2_1_2_1","volume-title":"August","author":"Martin Gardner","year":"1986","unstructured":"Martin Gardner , \"987654321\" , Isaac Asimov's Science Fiction Magazine , August 1986 , p. 100. Martin Gardner, \"987654321\", Isaac Asimov's Science Fiction Magazine, August 1986, p. 100."},{"issue":"2","key":"e_1_3_2_1_3_1","first-page":"98","volume":"21","author":"Timothy J.","year":"1987","unstructured":"Timothy J. Rolfe , \"Recurse Around the Clock\" , Mathematics and Computer Education , Vol. 21 , No. 2 (Spring, 1987 ), pp. 98 -- 104 . Timothy J. Rolfe, \"Recurse Around the Clock\", Mathematics and Computer Education, Vol. 21, No. 2 (Spring, 1987), pp. 98--104.","journal-title":"Mathematics and Computer Education"},{"key":"e_1_3_2_1_4_1","unstructured":"See  Problem E in http:\/\/www.acmcontest-pacnw.org\/ProblemSet\/2002\/forweb.zip  See Problem E in http:\/\/www.acmcontest-pacnw.org\/ProblemSet\/2002\/forweb.zip"},{"key":"e_1_3_2_1_5_1","unstructured":"See  http:\/\/icpc.baylor.edu\/icpc\/  See http:\/\/icpc.baylor.edu\/icpc\/"},{"issue":"5","key":"e_1_3_2_1_6_1","first-page":"48","volume":"29","author":"Timothy Rolfe","year":"2004","unstructured":"Timothy Rolfe , \"Backtracking Algorithms\" , Dr. Dobb's Journal , Vol. 29 , No. 5 ( May 2004 ), pp. 48 , 50--51. Timothy Rolfe, \"Backtracking Algorithms\", Dr. Dobb's Journal, Vol. 29, No. 5 (May 2004), pp. 48, 50--51.","journal-title":"Dr. Dobb's Journal"},{"key":"e_1_3_2_1_7_1","unstructured":"These implementations (which were developed as the instructor's solution when the problem was given as an assignment in an Algorithms course) are available through the following URL: http:\/\/penguin.ewu.edu\/~trolfe\/BoundClock\/Implementation.html  These implementations (which were developed as the instructor's solution when the problem was given as an assignment in an Algorithms course) are available through the following URL: http:\/\/penguin.ewu.edu\/~trolfe\/BoundClock\/Implementation.html"}],"event":{"name":"ITiCSE04: Innovation and Technology in Computer Science Education","location":"Leeds United Kingdom","acronym":"ITiCSE04","sponsor":["SIGCSE ACM Special Interest Group on Computer Science Education"]},"container-title":["Working group reports from ITiCSE on Innovation and technology in computer science education"],"original-title":[],"link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/1044550.1041664","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/1044550.1041664","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T12:25:05Z","timestamp":1750249505000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/1044550.1041664"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,6,28]]},"references-count":7,"alternative-id":["10.1145\/1044550.1041664","10.1145\/1044550"],"URL":"https:\/\/doi.org\/10.1145\/1044550.1041664","relation":{"is-identical-to":[{"id-type":"doi","id":"10.1145\/1041624.1041664","asserted-by":"object"}]},"subject":[],"published":{"date-parts":[[2004,6,28]]},"assertion":[{"value":"2004-06-28","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}