Clear Python 3 solution faster than 90%
\nclass Solution:\n    def lemonadeChange(self, bills: List[int]) -> bool:\n        count5, count10 = 0, 0\n        for i in range(len(bills)):\n            if 
```\nclass Solution:\n    def lemonadeChange(self, bills: List[int]) -> bool:\n        count5, count10 = 0, 0\n        for i in range(len(bills)):\n            if bills[i] == 5:\n                count5 += 1\n            elif bills[i] == 10:\n                count10 += 1\n                if not count5:\n                    return False\n                count5 -= 1\n            else:\n                if count10 and count5:\n                    count10 -= 1\n                    count5 -= 1\n                elif count5 > 2:\n                    count5 -= 3\n                else:\n                    return False\n        return True\n```
['Greedy', 'Python', 'Python3']