#include <mpi.h>
#include <iostream>
#include <vector>

using namespace std;

void vectorSend(vector<int> &vec, int procNumber);
vector<int> vectorRecv(int procNumber);

int main(int argc, char** argv){
MPI::Init(argc, argv);

int rank = MPI::COMM_WORLD.Get_rank();
//int size = MPI::COMM_WORLD.Get_size();

if(rank==0){
	vector<int> myVector;
	myVector.push_back(5);
	myVector.push_back(10);
	myVector.push_back(15);
	vectorSend(myVector,1);
}

if(rank==1){
	vector<int> vec = vectorRecv(0);
	for (vector<int>::iterator it = vec.begin(); it != vec.end(); ++it){
		std::cout << *it << ' ';
	}
	cout << endl;
}

MPI::Finalize();
return 0;
}

void vectorSend(const vector<int> &vec, int procNumber){

	int mySize = vec.size();

	MPI::COMM_WORLD.Send(&mySize,1,MPI::INT,procNumber,1234);
	MPI::COMM_WORLD.Send(&vec[0],vec.size(),MPI::INT,procNumber,1234);
}

vector<int> vectorRecv(int procNumber){
	int mySize;
	MPI::COMM_WORLD.Recv(&mySize,1,MPI::INT,procNumber,1234);

	vector<int> buffer;
	buffer.resize(mySize);

	MPI::COMM_WORLD.Recv(&buffer[0],mySize,MPI::INT,procNumber,1234);

	return buffer;
}