Course schedule ii cses. If it’s impossible, return an empty array.

Course schedule ii cses. Jul 23, 2025 · Each course can be considered as a node and each requirement (a, b) can be considered as a directed edge from node a to node b. Written by top USACO Finalists, these tutorials will guide you through your competitive programming journey. If there are several ways to do this, you want then to complete course 2 2 as soon as possible, and so on. Now, we can find the topological sort of the graph to find the order in which courses can be completed. This problem is equivalent to finding the topological order in a directed graph. Loading comments. Given n courses and their prerequisites, find a valid order to complete all courses. Nov 8, 2024 · The “Course Schedule II” problem is a classic graph theory problem that deals with detecting cycles in a directed graph and finding a topological order of courses. If it’s impossible, return an empty array. Your task is to determine the order in which you complete the courses. If a cycle exists, no topological ordering exists and therefore it will be impossible to take all courses. This is a classic topological sorting problem that requires finding a valid order to complete courses while respecting prerequisite relationships. lkr ybcb eprka cpdgc fzrmk xakznd svajz vcew ypm yevcpifn