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

int main(){

	int N, M, i;
	double x, y, z, pi;

	printf("Enter the value of N (Number of Points > 10000):");
	scanf("%d",&N);	

	for (i=0; i<N; i++) { 
		x = (double)rand()/RAND_MAX;
		y = (double)rand()/RAND_MAX;
		z = x*x+y*y;
		if( z<=1 )  M++; 
	}
	pi = 4.0 * ( double )M/N; 

	printf("Value of PI with %d pts is Monte Carlo method is :%f \n", N, pi);

	return 0;
}