Python for esle

class Solution:
    def asteroidCollision(self, asteroids: List[int]) -> List[int]:
        q = []
        for x in asteroids:   
            # 处理相对运行 0 < y <= -x 
            while q and q[-1] > 0 and x < 0:
                if q[-1] <= -x: 
                    y = q.pop()
                    if y == -x: break
                else: break
                
            else: q.append(x)
        return q