Topological sort orders a DAG so dependencies come first, the backbone of build systems, schedulers, and ML/data pipeline DAGs. The signal is Kahn's algorithm (or DFS) plus cycle detection. Here is the answer.
Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.
Topological sort orders a DAG so dependencies come first, the backbone of build systems, schedulers, and ML/data pipeline DAGs. The signal is Kahn's algorithm (or DFS) plus cycle detection. Here is the answer.
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