Scalar product P71310

The scalar product of two vectors $u=(u_0,\dots,u_{n-1})$ and $v=(v_0,\dots,v_{n-1})$ is $\sum_{i=0}^{n-1} u_i v_i$.

Write a function that returns the scalar product of @u@ and @v@.

Interface

double scalar_product(const vector<double>& u, const vector<double>& v);

double scalar_product(int n, double u[n], double v[n]);

public static double scalarProduct(double[] u, double[] v);

scalar_product(u, v)  # returns float

scalar_product(u: list[float], v: list[float]) -> float

Precondition

The vectors @u@ and @v@ have the same size.

Observation

You only need to submit the required procedure; your main program will be ignored.