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#include<stdio.h>
#include<math.h>
#include<stdlib.h>

int main() {
const double r=9;
 int i, m, n,itr=0;
 double x,y,z,pi;
 int arr[1]={0,1};
 printf("Enter the number of iterations you want= ");
 scanf("%d", &n);

int count= 0;
 for(i = 0; i < n; ++i) {

     x = ((double)rand() / (RAND_MAX)) *r;
     y = ((double)rand() / (RAND_MAX))*r;
     z = x * x + y * y;
     double distance= sqrt(z);
     if( distance <=r ) 
	{
		itr++;
	count++;
	printf("%d  %lf   %lf  %lf  %d",itr,x,y,distance,count);
	 printf("\n");
 }
 else{
 	itr++;
 printf("%d  %lf %lf   %lf %d",itr,x,y,distance,count);
 printf("\n");
 }
}
pi= (double) (4*count)/itr;
printf("\n%lf",pi);
 return(0);
}