There is a tournament where n players are participating. The players are standing in a single row and are numbered from 1 to n based on their initial standing position (player 1 is the first player in the row, player 2 is the second player in the row, etc.).…

给你一个大小为 n x m 的二维整数矩阵 grid，其中每个元素的值为 0、1 或 2。 V 形对角线段 定义如下：

You are given a 2D integer matrix grid of size n x m, where each element is either 0, 1, or 2. A V-shaped diagonal segment is defined as:

给你一个整数 n，你需要重复执行多次下述操作将其转换为 0 ：

Given an integer n, you must transform it into 0 using the following operations any number of times: