gistfile1.txt

class Solution:
    def asteroidCollision(self, asteroids):
        stack = []
        for asteroid in asteroids:
            stack.append(asteroid)
            while(len(stack) >= 2):
                if stack[-2] > 0 and stack[-1] < 0:
                    if abs(stack[-2]) > abs(stack[-1]):
                        stack.pop()
                    elif abs(stack[-2]) < abs(stack[-1]):
                        stack.pop(-2)
                    else:
                        stack.pop()
                        stack.pop()
                else:
                    break  
        return stack