Created
July 1, 2010 02:57
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| def dsh(un, va) | |
| (va.size - 1).downto(1) {|j| va[j] = va[0 .. j].inject(1) { |pr, it| pr * it } } | |
| ar = un.zip va | |
| hs = {} | |
| ar.each {|i| hs[i[0]] = i[1] } | |
| hs | |
| end | |
| yds = dsh([:yd, :ft, :in], [1, 3, 12]) | |
| puts yds[:in] / yds[:ft] * 1.5 |
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Check out my gist http://gist.github.com/7628cf7a4745c9179c66 , does it actually do the same in like 15 lines what yours does in 7? I think the optimal solution is somewhere between this one and mine... but I am not familiar enough with zip and inject to be able to read it (to trace the operations).