Video: Koj siv Dijkstra txoj kev luv tshaj algorithm li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Dijkstra's algorithm mus nrhiav tau txoj kev luv tshaj plaws nruab nrab ntawm a thiab b. Nws xaiv lub unvisited vertex nrog qhov qis tshaj nyob deb , xam cov nyob deb los ntawm nws mus rau txhua tus neeg nyob ze tsis tau ntsib, thiab hloov kho cov neeg nyob ze nyob deb yog me me. Mark tau mus xyuas (teeb liab) thaum ua tiav nrog cov neeg nyob ze.
Ib yam li ntawd, tib neeg nug, qhov zoo tshaj plaws txoj kev luv tshaj algorithm yog dab tsi?
- Dijkstra's Algorithm. Dijkstra's Algorithm sawv tawm ntawm tus so vim nws lub peev xwm los nrhiav txoj hauv kev luv tshaj plaws los ntawm ib qho ntawm txhua qhov ntawm lwm qhov hauv tib daim duab cov ntaub ntawv.
- Bellman-Ford Algorithm.
- Floyd-Warshall Algorithm.
- Johnson's Algorithm.
- Lus Cim Kawg.
Ib tug kuj yuav nug, dab tsi yog lub sij hawm complexity ntawm Dijkstra txoj kev shortest algorithm? Lub sij hawm nyuaj ntawm Dijkstra's algorithm yog O (V 2) tab sis nrog min-priority queue nws poob rau O (V + E l o g V).
Hauv qhov no, yog Dijkstra BFS lossis DFS?
Dijkstra cov algorithm yog Dijkstra's algorithm, nws tsis yog algorithm vim BFS thiab DFS lawv tus kheej tsis yog Dijkstra cov algorithm: BFS tsis siv qhov tseem ceeb queue (los yog array, yog tias koj xav siv qhov ntawd) khaws cia qhov deb, thiab. BFS tsis ua cov ntug kev so.
Puas yog Dijkstra dynamic programming?
Dynamic Algorithms txhais tau tias rhuav tshem cov txheej txheem ua haujlwm yooj yim dua. Txawm li cas los xij, los ntawm a dynamic programming kev xav, Dijkstra cov algorithm yog ib tug successive approximation tswvyim uas daws cov dynamic programming functional equation rau txoj kev shortest teeb meem los ntawm Reaching method.
Pom zoo:
Qhov twg yog txoj hauv kev zoo tshaj plaws los tshaj tawm tias koj nplooj ntawv siv html5 raws tu qauv?
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