#include <algorithm>#include <iostream>#include <numeric>#include <string>#include <forward_list> int main(){std::forward_list<int> nums{1,2,4,8,16};std::forward_list<std::string> fruits{"orange","apple","raspberry"};std::forward_list<char> empty; // Print forward_list.std::for_each(nums.begin(), nums.end(),[](constint n){std::cout<< n<<' ';});std::cout<<'\n'; // Sums all integers in the forward_list nums (if any), printing only the result.std::cout<<"Sum of nums: "<<std::accumulate(nums.begin(), nums.end(),0)<<'\n'; // Prints the first fruit in the forward_list fruits, checking if there is any.if(!fruits.empty())std::cout<<"First fruit: "<<*fruits.begin()<<'\n'; if(empty.begin()== empty.end())std::cout<<"forward_list 'empty' is indeed empty.\n";}

1 2 4 8 16Sum of nums: 31First fruit: orangeforward_list 'empty' is indeed empty.