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Re:Challenge HN: Inspired by greplin's third problem
on Sunday October 10, 2010 @02:16PM (#1777578)
is 14521794174 the answer by any chance? It took 12 hrs
Re:Can you solve it? The Greplin programming challenge
on Sunday October 10, 2010 @01:54PM (#1777521)
http://codepad.org/rdSirAkD -- Solution to third problem in 26 lines of ruby _without_ using combinations. It's pretty fast too, gives the answer in 0.020s.
Re:Challenge HN: Inspired by greplin's third problem
on Sunday October 10, 2010 @12:06PM (#1777260)
http://codepad.org/1dImO2j0 -- 26 lines of ruby will keep running throughout the year :P