In C++, Complete the following function that takes an integer as an argument and returns a power of two greater than or equal to input. If input is less than 1, the function should return 0. Ex.) 1.) 8 => 8. 2.) 15 => 16. 3.) 17 => 32   My code:   #include #include #include #include #include /* complete the 'PowerOfTwoCeling */ int PowerOfTwoCeling(int a) { } int main() { std::ofstream fout(std:: getenv("OUTPUT_PATH")); std::string inputString; std::getLine(std::cin, inputString); std::stringstream input(inputString int a; input >> a; fout<< PowerOfTwoCeling(a); fout.close(); return 0; }

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