The headline claim for O(1) time is based on comparison with Perl's hashes which also do a linear search down a bucket chain to resolve hash clashes, but are generally rated as O(1).

For your "worst case scenario to be so, it would require the file to contain 38e6-1 consequetive numbers and a single outlier 38e6 away from one end. My conclusion was that is an unlikely scenario for real data, My assumption is for a reasonably even distribution of the values through the range.

Furthermore you're only comparing the entries from the first column aren't you?

I do not understand the question?

I take the ops "Let say I need to know the pair for 1101077781160" to mean that given the input '1101077781160', he requires the other two values on that line. Eg. '1101077783656 bothChaff'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

In reply to Re^3: Rapid text searches ( O(log n) time) by BrowserUk
in thread Rapid text searches by joomanji

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