Bellman-ford algorithm for negative cycles explanation

Published: 28/12/2018
Bellman-ford algorithm for negative cycles explanation
Source: STACKOVERFLOW.COM

I tried to implement BF algorithm for negative cycle detection. I followed the lecture notes to implement algorithm. My solution was the following: def belman_ford(s, adj, cost): arr_len = len(adj) dist_arr = [MAX_VAL]*arr_len prev_arr = [None]*arr_len dist_arr[s] = 0 for u in range(arr_len): for i, v in enumerate(adj[u]): if dist_arr[v] == MAX_VAL: break if dist_arr[v] > dist_arr[u] + cost[u][

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