How to realize Zero Matrix in two-dimensional Array in LeetCode
This article mainly introduces the LeetCode two-dimensional array how to achieve zero matrix, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.
Topic description:
Write a way of writing that if an element in the Numbn matrix is 0, the row and column in which it is located are 0
For example:
Matrix= [[1, 1, 1], [1, 0, 1], [1, 1, 1]]
Set_zeros_matrix= [[1, 0, 1], [0, 0, 0], [1, 0, 1]]
Arithmetic
Find the location of element 0: I (row), j (column)
Store rows to zero: use tuples to store I and j
Line zero: Matrix [I] = [0] * len (matrix [0])
Column zero: double cycle
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