View Code of Problem 74

#include<stdio.h>
#include<math.h>
main()
{
   int a;
   float x1,x2;
   scanf("%d",&a);
   x1=1;
   x2=(x1+a/x1)/2.0;
   while(fabs(x1-x2)>=1e-5)
   {
   	x1=x2;
   	x2=(x1+a/x1)/2.0;
   }
   printf("%.3f",x2);
}