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Solution: Maximal Rectangle

Explore how to solve the maximal rectangle problem in a binary matrix by applying dynamic programming techniques. Understand how to convert each row into a histogram, track boundary arrays, and compute maximum area rectangles efficiently. This lesson equips you with a clear, optimized approach to an important algorithm pattern in coding interviews.

Statement

Given a binary matrix filled with 0’s and 1’s, find the largest rectangle containing only 1’s and return its area.

Constraints:

  • rows ==== matrix.length

  • cols ==== matrix[i].length

  • 11 \leq rows, cols 200\leq 200 ...