Top 50 dfs Interview Questions
The most frequently asked dfs questions across all roles and companies, ranked by real interview frequency. Updated daily.
Detect whether a directed dependency graph of startup tasks contains a cycle using DFS or topological ordering.
AqrXXiaomi Technology
Lucid MotorsUse DFS with recursion-state tracking to detect whether a directed dependency graph contains a cycle.
Altana
Zendesk
InfosysUse iterative DFS coloring to detect circular dependencies in an Applied Intuition simulation module graph.
Applied Intuition
KLA
NextdoorReturn a deterministic build order for Samsung Ads components using Kahn's topological sort, or report a dependency cycle.
Samsung Ads
Swiggy
BrexDetect circular Tencent Cloud TKE service dependencies using DFS node coloring.
Tencent
Cloud Security Services
AltenCount four-directionally connected islands in a 2D grid using BFS or DFS.
Traverse a PingOne policy tree in preorder using recursive depth-first search.
Ping Identity
Jefferies
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Traverse arbitrarily nested arrays and return their scalar values in left-to-right order using depth-first traversal.
AvidXchange
Atlassian
Christian Dior Couture