2319Determine whether the matrix is ​​one X matrix One question daily

topic：

2319. Determine whether the matrix is ​​one X matrix

Thought：

GolangPure violence，PythonLearn Spirit God
The downward bidding on the main diagonal needs to be satisfied：i=j
Opposition to the corner line is satisfied：i+j=n−1

Code：

class Solution:
    def checkXMatrix(self, grid: List[List[int]]) -> bool:
        return all(
            (v != 0) == (i == j or i + j == len(grid) - 1) for i, row in enumerate(grid) for j, v in enumerate(row))

func checkXMatrix(grid [][]int) bool {
    for i := 0; i < len(grid); i++ {
        for j := 0; j < len(grid[i]); j++ {
		//Two numbers in the first line
			if (i == j) || (i+j == len(grid)-1) {
				if grid[i][j] == 0 {
					return false
				}
			} else if grid[i][j] != 0 {
				return false
			}
		}
	}
	return true
}