NODE u, v, w;

	for (v = 0; v < MAX; v++)
		for (w = 0; w < MAX; w++)
			dist[v][w] = arc[v][w];
	for (u = 0; u < MAX; u++)
		for (v = 0; v < MAX; v++)
			for (w = 0; w < MAX; w++)
				if (dist[v][u] + dist[u][w] <
					dist[v][w] = dist[v][u] + dist[u][w];