Top 50 traversal Interview Questions
The most frequently asked traversal questions across all roles and companies, ranked by real interview frequency. Updated daily.
Use BFS to compute shortest path distances from a source node to every node in an unweighted graph.
Unity
NTT DATA
Telus DigitalReturn the breadth-first traversal order of a directed HP IQ graph while avoiding repeated visits.
Hp Iq
Munich Re
athenahealthRecursively swap every binary tree node's left and right subtrees to generate its mirror image.
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Detect circular Tencent Cloud TKE service dependencies using DFS node coloring.
Tencent
Cloud Security Services
AltenReturn a deterministic depth-first traversal of an HP IQ directed graph using an explicit stack and cycle detection.
Hp Iq
Manpower BelgiumReturn the inorder, preorder, and postorder traversals of a binary search tree using depth-first traversal.
TripadvisorCCimpress TechnologyTraverse a binary tree level by level, alternating left-to-right and right-to-left order with BFS.
Compass
Warner Bros. DiscoveryReturn the path to a Bloomberg Terminal topic in a nested hierarchy using iterative depth-first search.
Bloomberg
Ethos Life