goalang easy solution
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nfunc lemonadeChange(bills []int) bool {\n    five, ten := 0, 0\n\n    for _, val := range bills {\n        if val == 5 {\n            five++\n        } else if val == 10 {\n            if five <= 0 {\n                return false\n            }\n            five--\n            ten++\n        } else if val == 20 {\n            if ten > 0 {\n                if five <= 0 {\n                    return false\n                }\n                ten--\n                five--\n            } else if five >= 3 {\n                five -= 3\n            } else {\n                return false\n            }\n        }\n\n        if five < 0 {\n            return false\n        }\n    }\n\n    return true\n}\n\n```
['Go']