Problem0085

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85. Maximal Rectangle

题目

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 0

Return 6.

解题思路

http://blog.csdn.net/doc_sgl/article/details/11832965

见程序注释