Mr. Zero has a matrix Z consisting of m rows and n columns. The rows are numbered from 1 to m, columns are numbered from 1 to n. Element at row i (1 ≤ i ≤ m) and column j (1 ≤ j ≤ n) is denoted as Zij. All elements of Z are either 0 or 1.
This is a companion discussion topic for the original entry at https://toph.co/p/mr-zero