BMI Program

Oct 14, 2012 at 8:52pm
Need help with a program that will not display if and else if statements. Am I doing something wrong? Any helpful tips would be greatly appreciated.

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//This program is used to calculate the BMI of a person
//and display whether the person is overweight or not
//BMI = weight*703/height^2
//weight is measured in pounds/lbs
//height is measured in inches

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{

	double weight, height;
	float BMI;

	cout<<"Enter your weight in pounds: "<<endl;
	cin>>weight;
	cout<<"Enter your height in inches: "<<endl;
	cin>>height;
	BMI = (weight*703)/(height*height);
	cout<<fixed<<showpoint<<setprecision(1);
	cout<<"Your BMI is "<<BMI<<endl;

	if (BMI<18.5)
	{
	cout<<"You are underweight. Eat more food, your too skinny!\n"<<endl;
	}

	else if ((BMI<18.5) && (BMI>25))
	{
	cout<<"You have optimal weight. You are healthy, well done!\n"<<endl;
	}

	else if (BMI>25)
	{
	cout<<"You are overweight. Stop eating so much junkfood and excercise!\n"<<endl;
	}
	
system("pause");
return 0;
}


It only displays the first half of the code and completely skips over the if and else if statements for some reason.
Last edited on Oct 14, 2012 at 9:00pm
Oct 14, 2012 at 9:19pm
Well, it's not possible for the condition: (BMI<18.5) && (BMI>25) to be true. A number can't be both less than 18.5 and greater than 25.
Oct 14, 2012 at 9:22pm
The prompt says a BMI between 18.5 and 25 is optimal weight. Then should it be (BMI>=18.5 && BMI<=25).

Oh okay, thank you! It works now! Syntax is really important, I'll take note of that for next time.

I didn't even realize that... I can't believe I missed that...
Last edited on Oct 14, 2012 at 9:37pm
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