P71310: Producte escalar

#include <iostream>
#include <vector>
using namespace std;


double producte_escalar(const vector<double>& u, const vector<double>& v) {
    int tam = v.size();
    double escalar = 0;
    for (int i = 0; i < tam; ++i) {
        escalar = escalar + u[i] * v[i];
    }
    return escalar;
}