Matrix part 1

[vishnumani2009]

Maximum size rectangle binary sub-matrix with all 1s
Count Negative Numbers in a Column-Wise and Row-Wise Sorted Matrix
Construct Ancestor Matrix from a Given Binary Tree
Construct tree from ancestor matrix
In-place convert matrix in specific order
Common elements in all rows of a given matrix
Print maximum sum square sub-matrix of given size
Find a specific pair in Matrix
Find orientation of a pattern in a matrix
Shortest path in a Binary Maze
Inplace rotate square matrix by 90 degrees
Return previous element in an expanding matrix