[LeetCode]743. Network Delay Time

原题There areNnetwork nodes, labelled1toN.Giventimes, a list of travel times asdirectededgestimes[i] = (u, v, w), whereuis the source node,vis the target node, andwis the time it takes for a signal to travel from source to target.Now, we send a signal from a certain nodeK. How long will it take for all nodes to receive the signal? If it is impossible, return-1.NoteNwill be in the range[1, 100].Kwil... Read More