Python | Leetcode Python题解之第452题用最少数量的箭引爆气球
题目：
题解：
class Solution:
def findMinArrowShots(self, points: List[List[int]]) -> int:
if not points:
return 0
points.sort(key=lambda balloon: balloon[1])
pos = points[0][1]
ans = 1
for balloon in points:
if balloon[0] > pos:
pos = balloon[1]
ans += 1
return ans