带整数的C++向量积

#include <iostream>
#include <vector>

int vectorProduct(const std::vector<int>& vec1, const std::vector<int>& vec2) {
    if (vec1.size() != vec2.size()) {
        std::cout << "Error: The sizes of the two vectors are not equal." << std::endl;
        return 0;
    }

    int product = 0;
    for (size_t i = 0; i < vec1.size(); ++i) {
        product += vec1[i] * vec2[i];
    }

    return product;
}

int main() {
    std::vector<int> vec1 = {1, 2, 3};
    std::vector<int> vec2 = {4, 5, 6};

    int product = vectorProduct(vec1, vec2);
    std::cout << "The product of the two vectors is: " << product << std::endl;

    return 0;
}