✅C++ || 2 Line CODE || Beginner friendly && CLEAN
\n\nT->O(1) && S->O(1)\n\n\tclass Solution {\n\tpublic:\n\t\tint smallestEvenMultiple(int n){   \n\t\t\tif(n % 2 == 1) return n*2;\n\t\t\treturn n;\n\t\t}\n\t};
![image](https://assets.leetcode.com/users/images/a5d8d4f2-54c8-43e7-a514-7bf0a15aff22_1676266153.1189017.png)\n\n**T->O(1) && S->O(1)**\n\n\tclass Solution {\n\tpublic:\n\t\tint smallestEvenMultiple(int n){   \n\t\t\tif(n % 2 == 1) return n*2;\n\t\t\treturn n;\n\t\t}\n\t};
['C', 'C++']