Zuzhao Ye zuzhaoye
zuzhaoye
/ dijkstra.py
Created
December 7, 2019 03:56
— forked from dingran/dijkstra.py
Python implementation of Dijkstra's algorithm, single source all desinations and single source single destination
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| from collections import defaultdict | |
| def build_graph(edge_list): | |
| graph = defaultdict(list) | |
| seen_edges = defaultdict(int) | |
| for src, dst, weight in edge_list: | |
| seen_edges[(src, dst, weight)] += 1 | |
| if seen_edges[(src, dst, weight)] > 1: # checking for duplicated edge entries | |
| continue |