The difference now is, the worst-case is still O(n^2), but there's no input I can give it (accidentally or intentionally) that will trigger that behavior, I'd have to get insanely unlucky for that to happen on a large input. So again using quicksort as an example, this would mean the algorithm randomly chooses a pivot in the given range. install.hs hie-8.6.3 again to test if it was a temporary networking issue and will revert to a previous package list if the build continues to fail. You have to know deep details of how it's working.Īn often better way to go, when it's possible, is to use expected-time. Looking through some pages on the 'does not exist' cabal error, shows it could possibly be a networking issue or a corrupted package list. If I click on F: in the left pane, the content of this HD is shown. So in most cases it ends up being a pretty leaky and dangerous contract that your function is providing, with average-case analysis. If you dont have that file, then the crash is in third-party code that is being. You have to be careful what you are averaging over - what distribution you're assuming in the analysis.įor example for quicksort, if you implement it such that it always pivots on the first element of the range to be sorted, that could be average-case O(n lg n) if I consider all possible orderings of the inputs of the given size, but if I usually call it with an almost sorted array, that's not the average behavior I'm going to see by any means.
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