- Solution

#include <functional>
#include <string>
#include <iostream>
std::function<std::string()> makeLambda() {
  const std::string val = "on stack created";
  return [val]{return val;};
}
int main(){
  std::cout << std::endl;
  auto bad = makeLambda();
  std::cout << bad() << std::endl;
  std::cout << std::endl;
}