[ One liner ] beats 100% simple cpp
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. $$O(n)$$ -->\no(1)\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\no(1)\n\n# Code\n```\nclass Solution {\npublic:\n    int smallestEvenMultiple(int n) {\n        return (n%2==0)?n:n*2;\n        \n    }\n};\n```\n\n---\n\n**please upvote if helpful**\n\n---\n\n
['Math', 'C++']