#include<stdio.h>
#include<mpi.h>
#include<math.h>
int main(int argc, char* argv[])
{
        int rank,size;
        int x;
        double power;
        MPI_Init(&argc,&argv);
        MPI_Comm_rank(MPI_COMM_WORLD,&rank);
        MPI_Comm_size(MPI_COMM_WORLD,&size);
        if(rank == 0){
                printf("Please enter the value for x \n");
                fflush(stdout);//To Ensure prompt is printed before waiting for the input
                scanf("%d", &x);
                //done so that only one thread takes the unput
        }
        //now broadcast the input to all the processes
        MPI_Bcast(&x, 1, MPI_INT, 0 , MPI_COMM_WORLD);
        //this is to broadcast so x is the variable, 1 is the one value, MPI int is the datatype and 0 is the rank to broadcast from
        power = pow(rank,x);
        printf("the power for the process with rank %d to %d is %f \n",rank,x,power);
        MPI_Finalize();
        return 0;
}

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