Number of Distinct Islands: coding question

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Given a binary grid, count how many distinct island shapes (connected components of 1s via 4-directional adjacency) appear, treating two islands as identical if they match up to translation (but not rotation/reflection). The key challenge is to normalize each island's shape (e.g., by relative coordinates or a traversal signature) so you can deduplicate shapes efficiently.

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Oracle
Leetcode 694. Number of Distinct Islands
Reported Nov 13, 2025 · 1 source report
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Leetcode 694. Number of Distinct Islands
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Anduril
Number of Distinct Islands
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Anduril
Number of Distinct Islands

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Number of Distinct Islands

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Number of Distinct Islands

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