There are N network nodes, labelled 1 to N. Given times, a list of travel times as directededges times[i] = (u, v, w), where u is the source node, v is the target node, and w is the time it takes for a signal to travel from source to target. Now, we…

class Solution { public: int networkDelayTime(vector<vector<int>>& times, int N, int K) { vector<vector<, vector<, )); vector<); vector<, false); ; i < times.size(); ++i) { graph[times[i][]][times[i][]] = times[i][]; } ;…

""" here are N network nodes, labelled 1 to N. Given times, a list of travel times as directed edges times[i] = (u, v, w), where u is the source node, v is the target node, and w is the time it takes for a signal to travel from source to ta…