C language) How fat am I?? -->Let's check out BMI(Body Mass Index) using C language~!

Hi guys~~ I'm lulu:-) Today I'm going to make a program that calculates our BMI. #include <stdio.h> int main() { double weight, height; //Declare variables to store our weight, height. double bmi; //declare bariable to store our bmi. printf("Input your weight(kg) : "); scanf("%lf", &weight); //store the input weight in variable 'weight' printf("Input your tall(cm) : "); scanf("%lf", &height); //store the input height in variable 'height'. height = height / 100; //bmi uses "meter", so we should change to meter. bmi = weight / (height * height); //This is the formula of calculating BMI. printf("Your BMI is : %.1lf\n", bmi); if (bmi >= 20.0 && bmi < 25.0) printf("Standard weight.\n"); else if (bmi < 20) printf("Under weight.\n"); else prin...