Flowcharts & Processes

Breadth-First Search (BFS) Logic

Flowcharts & Algorithms diagram · made in Skemio

Flowchart showing BFS algorithm enqueueing start node, checking if queue empty, dequeuing node, inspecting neighbors, and terminating.
Flowchart showing BFS algorithm enqueueing start node, checking if queue empty, dequeuing node, inspecting neighbors, and terminating.
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What it shows

  • Uses a FIFO queue to discover all neighbors layer by layer.
  • Guarantees the shortest path from start node in unweighted networks.
  • Tracks visited nodes to prevent cycles and redundant recalculations.

The takeaway

BFS explores level by level using a queue, guaranteeing the shortest hop distance in unweighted graphs.

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