how can i run MPI program in windows - c

Question

I tried running it with microsoft MPI but its not generating desired output.
#include <stdio.h>
#include <math.h>
#include "mpi.h"
double function(double x) {
// Define the function to be integrated here
return x * sin(x);
}
int main(int argc, char *argv[]) {
double a, b, h, sum, x;
int n, p, rank, size, i;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (rank == 0) {
printf("Enter the number of subintervals (n): ");
scanf("%d", &n);
printf("Enter the number of processes (p): ");
scanf("%d", &p);
}
// Broadcast the inputs to all processes
MPI_Bcast(&n, 1, MPI_INT, 0, MPI_COMM_WORLD);
MPI_Bcast(&p, 1, MPI_INT, 0, MPI_COMM_WORLD);
a = 0.0;
b = 1.0;
h = (b - a) / n;
sum = 0.0;
// Divide the work among the processes
int interval_per_process = n / p;
int start = rank * interval_per_process;
int end = (rank + 1) * interval_per_process - 1;
for (i = start; i <= end; i++) {
x = a + h * (i + 0.5);
sum = sum + function(x);
}
sum = sum * h;
// Reduce the results from all processes to process 0
double global_sum;
MPI_Reduce(&sum, &global_sum, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
if (rank == 0) {
printf("The value of the integral is %.6lf\n", global_sum);
}
MPI_Finalize();
return 0;
}
So I need output like : It should ask for subintervals and processes and then give the final result i.e answer of integration using the midpoint rule.
But instead when i run it displays nohting and if enter any number it skips the scanner part and directly produce the output
I need a compiler