#include 
     
      #include 
      
       #include 
       
        #include 
        
         class PrintInt {public:    void Print(int i);};void PrintInt::Print(int i) {    std::cout << i << std::endl;}int main(int argc, char* argv[]) {    std::vector
         
           vecs;    for(int i = 0; i<20; i++) {        vecs.push_back(10+i);    }    PrintInt p;    std::for_each(vecs.begin(),vecs.end(),boost::bind(&PrintInt::Print,&p,_1));}