#include <stdio.h>
#include <mpi.h>

int main(int argc, char** argv) {
    int rank, size;

    /* initialize MPI */
    MPI_Init(&argc, &argv);

    /* get the rank (process id) and size (number of processes) */
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &size);

    /* the data our program operatres on */
    char string[100];

    /* have process 0 read in a string */
    if (rank == 0) {
        printf("Enter a string: ");
        fflush(stdout);
        scanf("%s", string);
    }

    /* now broadcast this out to all processes */
    MPI_Bcast(string, 100, MPI_CHAR, 0, MPI_COMM_WORLD);

    /* print the string */
    printf("Process %d has %s!\n", rank, string);

    /* quit MPI */
    MPI_Finalize();
    return 0;
}