View Code of Problem 74

#include <stdio.h>
#include <math.h>
int main()
{
	int x;
	scanf("%d",&x);
	double x1,x2;
	x1=1;	//
	do{
		x2=x1;
		x1=0.5*(x1+x*1.0/x1);	//
	}while(fabs(x1-x2)>0.000001);
	
	printf("%.3lf",x1);
	return 0;
}