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

using namespace std;

int main(int argc, char * argv[]) {

     srand(time(nullptr));
     MPI_Init(&argc, &argv);

     // Get the rank and size in the original communicator
     int rank, 
         size;

     MPI_Comm_rank(MPI_COMM_WORLD, &rank);
     MPI_Comm_size(MPI_COMM_WORLD, &size);
     
     vector<int> scatterLoc(size);
     int seed;

     if (rank == 0) {
        for(auto & x: scatterLoc)  {
           x = rand(); 
        }
     }

     MPI_Scatter(scatterLoc.data(), 1, MPI_INT, &seed, 1, MPI_INT, 
                      0, MPI_COMM_WORLD);


     cout << rank << " got " << seed << endl;

     if (rank == 0) {
        for(int i =0; i < scatterLoc.size(); ++i) {
           cout << scatterLoc[i] << " was at " << i << endl;
        }
     }

     MPI_Finalize();
     return 0;
}