#include <stdio.h>
#include <unistd.h>
#include <mpi.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>



//Example compilation
//mpicc ring_comm_starter.c -lm -o ring_comm_starter

//Example execution
//mpirun -np 2 -hostfile myhostfile.txt ./ring_comm_starter



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

  int my_rank, nprocs;

  MPI_Init(&argc,&argv);
  MPI_Comm_rank(MPI_COMM_WORLD,&my_rank);
  MPI_Comm_size(MPI_COMM_WORLD,&nprocs);

  if (nprocs==1)
  {
    printf("\n\nEnter at least 2 process ranks\n\n");
    MPI_Finalize();
    return 0;
  }

  //Write code here



  MPI_Finalize();
  return 0;
}