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Coding Practice

Graph Problems

Tackle graph problems — DFS, BFS, Dijkstra, topological sort, union-find, and island counting. Essential for senior engineering interviews.

Custom problem

Pick a topic and difficulty — AI builds a fresh challenge just for you.

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8 shown

Connect City Power GridsGraphHard~40 min Network Cable OptimizationGraphHard~40 min Optimize Network BandwidthGraphHard~40 min Network Signal CoverageGraphEasy~15 min Shortest Path in Weighted GraphGraphMedium~25 min Connected Components CountGraphEasy~15 min Minimum Operations to Make Network ConnectedGraphMedium~25 min City Connection CheckerGraphEasy~15 min