Master this problem using the Depth First Search (DFS) pattern.
When approaching Employee Importance, look for key problem signals that suggest using the Depth First Search (DFS) pattern. Focus on reducing redundant iterations, maintaining state invariant, and optimizing space-time complexity.
Key Invariant
Maintain optimal range bounds or hash frequency state during traversal.
Expected Complexity
Time: O(N) or O(N log N) | Space: O(1) to O(N)
Study Resource
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