Problem Description:

Given a 2D binary matrix filled with 0’s and 1’s, find the largest square containing only 1’s and return its area.

Problem description:

Given two words word1 and word2, find the minimum number of operations required to convert word1 to word2.

You have the following 3 operations permitted on a word:
Insert a character
Delete a character
Replace a character

Problem description:

Given a 2D binary matrix filled with 0’s and 1’s, find the largest rectangle containing only 1’s and return its area.
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