Shortest PathLesson 35Free preview
DSA Shortest Path
This lesson is part of DSA · All levels
Summary
The shortest route problem is finding a route with a minimum total weight between two nodes. The algorithm chosen depends on the characteristics of the graph: BFS for weightless graphs, Dijkstra for non-negative weights, and Bellman-Ford for negative weights. Understanding the nature of weight is essential to keeping the results correct.
Key points
- Objective: to find a path with a minimum total weight
- BFS for weightless graphs, Dijkstra for non-negative weight
- Bellman-Ford handles the negative weights and detects the negative cycles.
- The nature of the weight determines the correct algorithm used
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