This website contains ALL LeetCode **Premium** problems for
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All leaked interview problems are collected from Internet.

All leaked interview problems are collected from Internet.

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

For example, given the following matrix:

1 0 1 0 0 1 0 1 1 1 1 1 1 1 1 1 0 0 1 0Return 6.

b''