| --- Log opened Fri Nov 25 00:00:16 2011 |
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| 04:22 | <~Vornicus> celmin: gimme an example of your lists |
| 04:23 | < celticminstrel> | They're sublists of a larger list centred about a specific element. |
| 04:27 | <~Vornicus> so like you have, um, I don't know, [1,2,3] and [3,4,5], but not (say) [1,3,5]? |
| 04:32 | < celticminstrel> | Yeah. |
| 04:43 | <~Vornicus> Okay, and is the list one-to-one? |
| 04:45 | <~Vornicus> (which is to say: is len(set(big_list)) == len(big_list), each element of the list appears only once in the big list) |
| 04:58 | < celticminstrel> | It's technically possible for an element to be duplicated, but astronomically unlikely. |
| 04:58 | < celticminstrel> | So, probably safe to assume no duplicates. |
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| 06:05 | <~Vornicus> "astronomically unlikely" in computers is "next tuesday" |
| 06:05 | < McM[travels]> | Pretty sure SHA256 is still OK~ |
| 06:06 | <~Vornicus> Truth, but |
| 06:08 | <~Vornicus> Well, all right, assuming No Duplicates: you find matches between sublists. These will (assuming that the sublists, as intervals, union to the full list or at least to a connected sublist thereof) then allow you to union them together. Do two at a time, clear out sublists thast get used in combos |
| 06:11 | < celticminstrel> | Heh. |
| 06:12 | <~Vornicus> WHen you get down to one list, you're done; if you get to two or more lists but cannot find more matches, you're stuck with unconnected sublists and cannot get any further. |
| 06:13 | < celticminstrel> | So go through the list and consider the sublists in pairs, removing duplicates if they exist and merging the sublists if applicable. |
| 06:14 | <~Vornicus> RIght. |
| 06:14 | < celticminstrel> | Okay. I should be able to do this... |
| 06:17 | < celticminstrel> | (Also if there did happen to be a duplicate in the list I don't think it would really matter if it disappeared.) |
| 06:18 | <~Vornicus> No, if there's a duplicate then you've got Huge Problems |
| 06:18 | < celticminstrel> | I do? |
| 06:18 | <~Vornicus> yeah. |
| 06:18 | < celticminstrel> | I can at least guarantee that if there are duplicates they'd be adjacent. |
| 06:18 | <~Vornicus> So, sorted list. |
| 06:19 | < celticminstrel> | Yeah, I guess. |
| 06:19 | < celticminstrel> | Not explicitly sorted, but I guess it would be (mostly) sorted by construction, since timestamps. |
| 06:19 | <~Vornicus> What are these things? |
| 06:20 | < celticminstrel> | Log messages. |
| 06:20 | <~Vornicus> Are the timestamps part of the equality test? |
| 06:20 | < celticminstrel> | Um, the big list is basically the entire contents of the file, so I think that means yes? |
| 06:21 | <~Vornicus> Well hell, why didn't you say so? sort | uniq |
| 06:22 | < celticminstrel> | PHP. <_< |
| 06:22 | < celticminstrel> | Otherwise I'd be using grep. |
| 06:23 | <~Vornicus> hell again |
| 06:23 | <~Vornicus> And why are you getting sublists anyway? |
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| 16:01 | < gnolam> | "In this context, the most efficient, reliable and accurate geodetic technique to estimate positions in a common reference frame (also considering the distance between CERN and LNGS, approximately equal to 730 Km) is based on Global Positioning System (GPS)." |
| 16:01 | < gnolam> | ... et tu, LNGS |
| 16:01 | < gnolam> | Well, that's the neutrino anomaly solved. |
| 16:01 | < gnolam> | The distance is in kelvin meters, and is therefore highly temperature dependent. |
| 16:04 | < ErikMesoy> | Again? ;) |
| 16:04 | < TheWatcher> | pft |
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| --- Log closed Sat Nov 26 00:00:31 2011 |