\n The pathfinding problem is about finding a route between specific nodes (vertices) in a given graph. \n Determine whether a path exists between the start node and the goal node in the given graph, \n To solve the pathfinding problem, the following algorithms can be used:\n <\/p>\n \n Here, we will look at how to search for the shortest path using BFS. Since BFS explores in levels, \n The above code is an implementation of pathfinding based on BFS. <\/p>\n \n The time complexity of the BFS algorithm is O(V + E), where V is the number of vertices and E is the number of edges. \n In this course, we explored how to solve the pathfinding problem using Kotlin. \n I hope this course will be of great help in preparing for coding tests and understanding algorithms. Thank you!\n <\/p>\n<\/section>\n
\n This problem is one of the fundamental and important problems for evaluating coding tests and algorithm problem-solving abilities.
\n In this course, we will explain how to solve such problems using Kotlin.\n <\/p>\n<\/section>\n2. Problem Definition<\/h2>\n
\n and if a path exists, print the corresponding path.\n <\/p>\nInput Format<\/h3>\n
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Output Format<\/h3>\n
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3. Problem-Solving Strategy<\/h2>\n
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\n it is advantageous for finding the shortest path.\n <\/p>\n<\/section>\n4. Algorithm Implementation (Kotlin Example)<\/h2>\n
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\n import java.util.*\n\n fun bfs(graph: Array5. Code Explanation<\/h2>\n
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\n It uses a queue to proceed with the search and records visited nodes in the visited array.
\n When it reaches the goal node, it returns the path based on parent information.\n <\/li>\n
\n It traces the path using the parent information of each node and returns the array.\n <\/li>\n<\/ul>\n<\/section>\n6. Time Complexity Analysis<\/h2>\n
\n In this problem, there can be a maximum of 1000 vertices and 10000 edges, making it possible to solve efficiently.\n <\/p>\n<\/section>\n7. Conclusion<\/h2>\n
\n We presented the most efficient way to search for paths in graphs using the BFS algorithm,
\n and verified the process of solving the problem with actual code.
\n Additionally, understanding the implementation of DFS and the differences from BFS can provide further insights.\n <\/p>\n