#include<stdio.h>
#include<conio.h>
main()
{
float x,y,z;
clrscr();
printf("\nThis program calculate if you are Underweight,Healthy or Overweight");
printf("\n\n Enter your weight in kilograms:");
scanf("%f",&x);
printf("\n\n Enter your weight in meters:");
scanf("%f",&y);
z=((y*y)/x);
if(z<20){
 printf(" the Quetelet-index is: %f",z);
 printf("\n\n\tUnderweight");
 }
 else{
 printf("\n the quetelet-index is : %f",z);
 printf("\n\n\tOverweight");
 }
 getch();
 return 0;
 }