Dubizzle

Challenges: 3Medium: 3

This Dubizzle coding-practice set brings together 3 challenges, with a mix of 3 medium. The problems lean on bfs, dfs, graph, matrix, arrays, so you can rehearse relevant patterns and review your progress.

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Dubizzle coding challenges

Number of Islands
Difficulty: MediumTopics: bfs, dfs, graph, matrix
Find Repeating and Missing Number
Difficulty: MediumTopics: arrays, hash-map, math
Validate Binary Search Tree
Difficulty: MediumTopics: dfs, recursion, trees

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