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Detect Squares

medium Solve on LeetCodeLast edited: January 4, 2026

Problem
Examples
Constraints
Solution
Method 1 – Diagonal Detection with Point Frequency Map
Intuition
Approach
Complexity
Code

Related Tags

backtracking counting database design design/data-structure dynamic-programming enumeration greedy hash-table heap-priority-queue leetcode math matrix memoization ordered-set prefix-sum sorting stack string

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