You are given a matrix of '0' and '1' You have to return the area of the largest rectangle formed by '1's in the mat
Input Format
A 2D matrix of '1' and '0'
Output Format
An integer(largest area)
Constraints
0<=rows<10^4 0<=col<10^4
Notice
Try First, Check Solution later
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Input
2 8 0 0 1 0 0 0 0 0 1 1 1 1 1 1 1 0
Output
7