The Body Mass Index (BMI) can be used to classify weight in adults. The BMI of a person is given by the weight in kilogrammes divided by the square of the height in metres [WHO, CDC, NHS]. Based on the BMI, a person can be classified in one of four statistical categories: underweight, normal weight, overweight or obese. See the following table:
BMI = w/h² (kg/m²) BMI < 18.5 underweight 18.5 ≤ BMI < 25 normal weight 25 ≤ BMI < 30 overweight 30 ≤ BMI obese
The above are statistical categories. To evaluate an individual’s health, one should consult with a trained healthcare provider.
Write a program that given the weight and height of a person prints the corresponding BMI classification.
The input consists of several lines, each containing two numbers h and w with up to two decimal points where
0.10 ≤ h < 3.00
1.0 ≤ w ≤ 999.9
For each line of input,
the output should contain a single line with the corresponding BMI
classification in lowercase letters:
1.75 69.9 1.60 65 1.91 111.1
normal weight overweight obese
try first: oddeven
try next: triangle
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