fix: resolve #402 — Added Advanced Graph and String Algorithms (Dijkstra, Prim’s, Kruskal’s, Floyd–Warshall, KMP, Rabin–Karp) - #411
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Summary
fix: resolve #402 — Added Advanced Graph and String Algorithms (Dijkstra, Prim’s, Kruskal’s, Floyd–Warshall, KMP, Rabin–Karp)
Problem
Severity:
Medium| File:Java/graphs/Dijkstra.javaSingle-source shortest paths on non-negative weighted digraph. Educational impl with adjacency list + binary heap.
Solution
Class Dijkstra. Graph as List<List<int[]>> (to, weight). Method dijkstra(int n, List<List<int[]>> g, int src) → int[] dist. Use PriorityQueue<int[]> (dist, node). Skip relax if stale. main() demo: 5 nodes, print dist[]. Comment O((V+E) log V) time, O(V) space. Stdlib only.
Changes
Java/graphs/Dijkstra.java(modified)Java/graphs/Prim.java(new)Java/graphs/Kruskal.java(new)Java/graphs/FloydWarshall.java(new)Testing
Note: this change was drafted with AI assistance and reviewed locally before submission.