दो वेक्टरों का डॉट प्रोडक्ट

इनपुट:
std::vector<double> a = {1.0, 2.0, 3.0};
std::vector<double> b = {4.0, 5.0, 6.0};

अपेक्षित आउटपुट:
double expected = 32.0;

इनपुट:
double[] a = new double[] {1.0, 2.0, 3.0};
double[] b = new double[] {4.0, 5.0, 6.0};

अपेक्षित आउटपुट:
double expected = 32.0;

इनपुट:
std::vector<double> a = {0.5, -1.5};
std::vector<double> b = {2.0, 4.0};

अपेक्षित आउटपुट:
double expected = -5.0;

इनपुट:
double[] a = new double[] {0.5, -1.5};
double[] b = new double[] {2.0, 4.0};

अपेक्षित आउटपुट:
double expected = -5.0;