breadth first search (bfs)

PPTX 45 pages 303.9 KB Free download

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Updated Dec 2025

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breadth first search (bfs) breadth first search (bfs) algorithms and data structures course breadth first search (bfs) bfs is also a method to traverse graph. algorithm: algorithms and data structures course bfs(v) { add v to queue q while q is not empty take front vertex u from q remove front vertex of q mark u as visited for all unvisited adjacent vertices w of u add w to the q } breadth first search (bfs) algorithms and data structures course visited vertices: {} queue: {} current vertex: - legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go 1 2 4 6 7 8 5 3 breadth first search (bfs) algorithms and data structures course visited vertices: {} queue: {1} current vertex: - legend: green …

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algorithms and data structures course visited vertices: {1} queue: {2, 4} current vertex: 1 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go breadth first search (bfs) algorithms and data structures course visited vertices: {1} queue: {2, 4} current vertex: - 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go breadth first search (bfs) algorithms and data structures course visited vertices: {1, 2} queue: {4} current vertex: 2 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is …

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queue: {4, 6, 7} current vertex: - 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go breadth first search (bfs) algorithms and data structures course visited vertices: {1, 2, 4} queue: {6, 7} current vertex: 4 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go breadth first search (bfs) algorithms and data structures course visited vertices: {1, 2, 4} queue: {6, 7} current vertex: 4 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices …

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vertex: 6 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go breadth first search (bfs) algorithms and data structures course visited vertices: {1, 2, 4, 6} queue: {7, 5} current vertex: 6 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go breadth first search (bfs) algorithms and data structures course visited vertices: {1, 2, 4, 6} queue: {7, 5} current vertex: 6 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange …

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7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go breadth first search (bfs) algorithms and data structures course visited vertices: {1, 2, 4, 6, 7} queue: {5, 3} current vertex: 7 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction we can’t go breadth first search (bfs) algorithms and data structures course visited vertices: {1, 2, 4, 6, 7} queue: {5, 3} current vertex: - 1 2 4 6 7 8 5 3 legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current …

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breadth first search (bfs) breadth first search (bfs) algorithms and data structures course breadth first search (bfs) bfs is also a method to traverse graph. algorithm: algorithms and data structures course bfs(v) { add v to queue q while q is not empty take front vertex u from q remove front vertex of q mark u as visited for all unvisited adjacent vertices w of u add w to the q } breadth first search (bfs) algorithms and data structures course visited vertices: {} queue: {} current vertex: - legend: green vertices is unvisited gray vertices is queued black vertices is visited orange vertex is a current vertex blue arrows is a path we go red arrows is a direction …

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