Leetcode Problem 1203. Sort Items by Groups Respecting Dependencies

1203. Sort Items by Groups Respecting Dependencies

Leetcode Solutions

Assign unique group IDs to items that do not belong to any group.
Construct adjacency lists and in-degree lists for items and groups.
Add item dependencies to the item graph and group dependencies to the group graph.
Perform topological sorting on items. If a cycle is detected, return an empty list.
Perform topological sorting on groups. If a cycle is detected, return an empty list.
Combine sorted items into their respective groups.
Combine sorted groups into the final answer while maintaining the order of items within each group.

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