Solution.py

class Solution:
    def maxKilledEnemies(self, grid: List[List[str]]) -> int:
        m, n = len(grid), len(grid[0])
        g = [[0] * n for _ in range(m)]
        for i in range(m):
            t = 0
            for j in range(n):
                if grid[i][j] == 'W':
                    t = 0
                elif grid[i][j] == 'E':
                    t += 1
                g[i][j] += t
            t = 0
            for j in range(n - 1, -1, -1):
                if grid[i][j] == 'W':
                    t = 0
                elif grid[i][j] == 'E':
                    t += 1
                g[i][j] += t
        for j in range(n):
            t = 0
            for i in range(m):
                if grid[i][j] == 'W':
                    t = 0
                elif grid[i][j] == 'E':
                    t += 1
                g[i][j] += t
            t = 0
            for i in range(m - 1, -1, -1):
                if grid[i][j] == 'W':
                    t = 0
                elif grid[i][j] == 'E':
                    t += 1
                g[i][j] += t
        return max(
            [g[i][j] for i in range(m) for j in range(n) if grid[i][j] == '0'],
            default=0,
        )