Consider a matrix with N rows and M columns, where each cell contains either a ‘0’ or a ‘1’ and any cell containing a 1 is called a filled cell. Two cells are said to be connected if they are adjacent to each other horizontally, vertically, or diagonally. If one or more filled cells are connected, they form a region. The task is to find the unit area of the largest region.
The first line of input will be the number of testcases T, then T testcases follow. The first line of each testcase contains 2 space separated integers n and m. Then in the next line are the nxm inputs of the matrix A separated by space.
The output in the expected output will be the length of the largest region formed.
The task is to complete the function findArea() which finds the area of largest region with 1s.
1 <= T <= 100
1 <= N, M <= 50
0 <= A <= 1
1 1 0 0 0 1 1 0 1
1 1 1
Testcase 1: Matrix can be shown as follows:
1 1 0
0 0 1
1 0 1
Largest region of 1s in the above matrix is with total 6 1s (colored in Red).
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