[](){

std::cout << "Hello World" << std::endl;

}();

[](double a, double b){

std::cout << " a + b : " << (a+b) << std::endl;

}(12.5,14.5);

double result = [](double a, double b){

return (a+b);

}(120.5,14.5);

std::cout << "result : " << result << std::endl;

std::cout << "result : " << [](double a, double b){

return (a+b);

}(1220.5,14.5) << std::endl;

double result2 = [](double a, double b)->double{

return (a+b);

}(11230.5,14.5);

std::cout << "result2 : " << result2 << std::endl;

auto say_hi = [](){

std::cout << "Hello World..!" << std::endl;

};

say_hi(); //call the fuction

auto say_hi2 = [](std::string name){

std::cout << "hi " << name << std::endl;

};

say_hi2("Amal");

auto get_max = [](int n1,int n2)->int{

return (n1>n2) ? n1:n2;

};

std::cout << get_max(12312,12) << std::endl;

}