[LeetCode/Python] 860. Lemonade Change - A024

- 문제

 

- 코드

class Solution:
    def lemonadeChange(self, bills: List[int]) -> bool:
        saved = [0, 0, 0]
        for i in bills:
            if i == 5:
                saved[0] += 1
            elif i == 10:
                if saved[0] == 0:
                    print(saved, i)
                    return False
                saved[0] -= 1
                saved[1] += 1
            elif i == 20:
                if saved[1] >= 1 and saved[0] >= 1:
                    saved[1] -= 1
                    saved[0] -= 1
                    saved[2] += 1
                elif saved[0] >= 3:
                    saved[0] -= 3
                    saved[2] += 1
                else:
                    print(saved, i)
                    return False
        return True