Dummy YAML Node

#include "yaml-cpp/yaml.h"
#include <vector>

#include <opencv2/core/core.hpp>

int main()
{
    YAML::Emitter camera;
    std::vector<int> a = { 1,2,3,4,5};
    std::vector<int> a1 = { 1,2,3,4,5};
    std::vector<int> a2 = { 6,7,8,9,50};
    std::vector<std::vector<int>> b = {a1, a2};

    camera << YAML::BeginMap
        << YAML::Key << "camera"
        << YAML::Value << YAML::BeginMap
        << YAML::Key << "name" << YAML::Value << "cam001"
        << YAML::Key << "active" << YAML::Value << true
        << YAML::Key << "height" << YAML::Value << 640
        << YAML::Key << "width" << YAML::Value << 480
        << YAML::Key << "D" << YAML::Value << YAML::Flow << a
        << YAML::Key << "K" << YAML::Value << YAML::Flow << b
        << YAML::EndMap
        << YAML::EndMap;

    YAML::Node node = YAML::Load(camera.c_str());
    cv::Mat qw;
    /* qw = cv::Mat_<float> */
    std::cout<< (bool)node["camera"]["active"];
    std::vector<int> row1 = node["camera"]["K"][1].as<std::vector<int>>();
    node["camera"]["K"][0] = a2;
    std::cout << node << '\n';

    std::cout << node["camera"]["K"][1] << '\n';

    /* std::cout << "Here's the output YAML:\n" << camera.c_str() << '\n'; // prints "Hello, World!" */
    /* std::string name="_qwq"; */
    /* std::cout<<"asasa "<<name.substr(0,0)<<'\n'; */
    return 0;
}
// g++ main.cpp -std=c++14 -lyaml-cpp && ./a.out