Scalar product

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

C++	`double scalar_product(const vector<double>& u, const vector<double>& v);`
C	`double scalar_product(int n, double u[n], double v[n]);`
Java	`public static double scalarProduct(double[] u, double[] v);`
Python	`scalar_product(u, v) # returns float`
MyPy	`scalar_product(u: list[float], v: list[float]) -> float`

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

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

Author: Unknown
Translator: Carlos Molina

Generation: 2026-01-25T11:38:17.676Z