LeetCode 743 | Network Delay Time

In this problem, we solve LeetCode 743 – Network Delay Time, a popular Graph problem that focuses on determining the minimum time required for a signal to reach all nodes in a network. We explore how Dijkstra’s Algorithm can be used to efficiently find the shortest time from a source node to every other node in a weighted directed graph. 💡 In this video: -Understanding the Problem Statement -Modeling the Network as a Graph -Directed and Weighted Edges -Brute Force Approach -Introduction to Dijkstra’s Algorithm -Using a Priority Queue (Min Heap) -Finding Shortest Paths Efficiently -Tracking Signal Arrival Times -Handling Unreachable Nodes -Determining the Final Network Delay -Step-by-Step Dry Run -Time & Space Complexity Analysis -Java Implementation 🎯 This problem is an excellent introduction to shortest path algorithms and helps build a strong foundation for solving weighted graph problems frequently asked in coding interviews. 📌 Follow & Connect with Us: 🌐 Website: leetverse.vercel.app 📝 Registration link : https://forms.gle/QkGwatVBXDr6dpxi6 📸 Instagram:   / leetverse   ✨ LeetVerse — Learn, Code, Grow! #LeetCode #DSA #NetworkDelayTime #Graphs #Dijkstra #ShortestPath #PriorityQueue #GraphTraversal #Java #CodingInterview #ProblemSolving #LeetVerse #Algorithms