IT/Computer Science
[Leetcode/Array, Greedy] 860. Lemonade Change
Diana Kang
2025. 5. 5. 09:02
class Solution:
def lemonadeChange(self, bills: List[int]) -> bool:
five, ten = 0, 0
for bill in bills:
if bill == 5:
five += 1
elif bill == 10:
if five == 0:
return False
five -= 1
ten += 1
else:
if ten > 0 and five > 0:
ten -= 1
five -= 1
elif five >= 3:
five -= 3
else:
return False
return True