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

main(){
	float xn, xn1,tmp;
	unsigned a;
	xn=1; 
	xn1=1;
	printf("Unesite broj:\n");
	scanf("%u",&a);
	do{
		xn=xn1;
		xn1=xn1-(xn1*xn1-a)/(2*xn1);
		printf("%f\n",xn1);
	}while(fabs(xn1-xn)>=0.001);
	
	printf("Koren broja %u je %f, sa preciznoscu od %f\n",a,xn1,0.001);
}