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Pattern

Graphs

Model relationships and connections between entities.

8 Problems
0 Easy
8 Medium
0 Hard

When to Use Graphs

Pattern Recognition

Look for these trigger words in problem statements:

number of islands graphs clone graph pacific atlantic water flow course schedule course schedule ii rotting oranges surrounded regions graph valid tree

Practice Problems

Easy (0) Medium (8) Hard (0)
Number of Islands medium Clone Graph medium Pacific Atlantic Water Flow medium Course Schedule medium Course Schedule II medium Rotting Oranges medium Surrounded Regions medium Graph Valid Tree medium

Related Patterns

Backtracking Advanced Graphs

Master Graphs

Build pattern recognition with interactive MCQs. Understand why to use Graphs, not just how.

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