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Pakket: libghc-psqueues-dev ( en anderen)

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Pure priority search queues

This package provides Priority Search Queues in three different flavors.

* OrdPSQ k p v, which uses the Ord k instance to provide fast insertion, deletion and lookup. This implementation is based on Ralf Hinze's "A Simple Implementation Technique for Priority Search Queues". Hence, it is similar to the PSQueue library, although it is considerably faster and provides a slightly different API.

* IntPSQ p v is a far more efficient implementation. It fixes the key type to Int and uses a radix tree (like IntMap) with an additional min-heap property.

* HashPSQ k p v is a fairly straightforward extension of IntPSQ: it simply uses the keys' hashes as indices in the IntPSQ. If there are any hash collisions, it uses an OrdPSQ to resolve those. The performance of this implementation is comparable to that of IntPSQ, but it is more widely applicable since the keys are not restricted to Int, but rather to any Hashable datatype.

Each of the three implementations provides the same API, so they can be used interchangeably.

Typical applications of Priority Search Queues include:

* Caches, and more specifically LRU Caches;

* Schedulers;

* Pathfinding algorithms, such as Dijkstra's and A*.

This package provides a library for the Haskell programming language. See for more information on Haskell.

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libghc-psqueues-dev downloaden

Pakket downloaden voor alle beschikbare platforms
Platform Versie Pakketgrootte Geïnstalleerde grootte Bestanden
alpha (unofficial port) 293,9 kB3.372,0 kB [overzicht]
amd64 195,5 kB1.877,0 kB [overzicht]
arm64 249,0 kB2.590,0 kB [overzicht]
armel 261,2 kB2.161,0 kB [overzicht]
armhf 261,0 kB2.161,0 kB [overzicht]
hppa (unofficial port) 409,6 kB3.531,0 kB [overzicht]
hurd-i386 204,7 kB1.627,0 kB [overzicht]
i386 204,3 kB1.626,0 kB [overzicht]
kfreebsd-amd64 196,1 kB1.877,0 kB [overzicht]
kfreebsd-i386 204,4 kB1.626,0 kB [overzicht]
m68k (unofficial port) 299,2 kB2.720,0 kB [overzicht]
mips 231,2 kB2.584,0 kB [overzicht]
mips64el 255,3 kB3.255,0 kB [overzicht]
mipsel 242,6 kB2.584,0 kB [overzicht]
powerpcspe (unofficial port) 270,3 kB2.651,0 kB [overzicht]
ppc64 (unofficial port) 245,8 kB3.457,0 kB [overzicht]
ppc64el 254,6 kB3.163,0 kB [overzicht]
riscv64 (unofficial port) 386,1 kB4.504,0 kB [overzicht]
s390x 274,7 kB3.081,0 kB [overzicht]
sparc64 (unofficial port) 335,7 kB4.721,0 kB [overzicht]
x32 (unofficial port) 329,9 kB2.711,0 kB [overzicht]