Video: Dab tsi yog qhov dav thawj qhov kev tshawb nrhiav thiab qhov tob thawj qhov kev tshawb fawb?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
BFS sawv rau Breadth Thawj Nrhiav . DFS sawv rau Qhov tob Nrhiav thawj zaug . 2. BFS ( Breadth Thawj Nrhiav ) siv Queue cov ntaub ntawv qauv los nrhiav txoj hauv kev luv tshaj. BFS siv tau nrhiav ib qhov twg shortest txoj kev nyob rau hauv ib tug unweighted graph, vim hais tias nyob rau hauv BFS , peb mus txog lub vertex nrog tsawg kawg ntawm cov npoo los ntawm qhov chaw vertex.
Ntawm no, dab tsi yog qhov tob thawj nrhiav nrog piv txwv?
Qhov tob Nrhiav thawj zaug los yog DFS rau daim duab. Qhov tob First Traversal (los yog Nrhiav ) rau ib daim duab zoo ib yam li Qhov tob First Traversal ntawm tsob ntoo. Rau piv txwv , hauv cov duab hauv qab no, peb pib kev hla los ntawm vertex 2. Thaum peb tuaj rau vertex 0, peb saib rau tag nrho cov nyob ib sab ntawm nws. 2 tseem yog ib qho vertex uas nyob ib sab ntawm 0.
Ib sab saum toj no, dab tsi yog qhov tob thawj tshawb nrhiav rov qab? Cov qhov tob - thawj nrhiav algorithm tso cai rau peb los txiav txim seb ob lub nodes, node x thiab node y, muaj txoj hauv kev ntawm lawv. DFS algorithm ua qhov no los ntawm saib tag nrho cov me nyuam ntawm qhov pib node, node x, mus txog rau ntawm node y.
Ib yam li ntawd, kev tshawb nrhiav dav dav yog dab tsi?
Breadth Thawj Nrhiav (BFS) Algorithm Breadth thawj nrhiav yog graph kev hla algorithm uas pib traversing daim duab los ntawm cov hauv paus node thiab tshawb xyuas tag nrho cov nyob sib ze nodes. Tom qab ntawd, nws xaiv qhov ze tshaj plaws thiab tshawb xyuas tag nrho cov tsis tau tshawb nrhiav.
Dab tsi yog qhov kev tshawb fawb tob tob?
Qhov tob - thawj nrhiav yog siv nyob rau hauv topological sorting, teem sij hawm teeb meem, nrhiav kom tau lub voj voog nyob rau hauv graphs, thiab daws puzzles nrog ib tug daws teeb meem, xws li ib tug maze los yog ib tug sudoku puzzle. Lwm daim ntawv thov suav nrog kev txheeb xyuas cov tes hauj lwm, piv txwv li, kuaj yog tias daim duab yog bipartite.
Pom zoo:
Puas yog kev tshawb nrhiav linear zoo ib yam li kev tshawb fawb sib txuas?
Chav Kawm: Nrhiav algorithm
Dab tsi yog cov tshuab tshawb nrhiav uas tshawb nrhiav lwm lub tshuab tshawb fawb?
Txhawm rau pib tawm ntawm peb txoj kev tshawb nrhiav taug txuj kev nyuaj, cia saib qee qhov kev tshawb fawb dav dav tshaj qhov peb sab saum toj. DuckDuckGo. Kev txhawj xeeb txog kev ceev ntiag tug hauv online? Nrhiav Encrypt. Nrhiav rau lwm txoj rau DuckDuckGo? Ecosia. Xav tau tsob ntoo cog thaum koj tshawb nrhiav? Dogpile. Blekko. WolframAlpha. Gigablast. Facebook Nrhiav
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