Skip to content

luc022.c

Problem Statement

The Body Mass Index (BMI) is defined as ratio of weight of the person (in Kilograms) to square of the height (in meters). Write a program that receives weight and height, calculate the BMI, and reports the BMI catagory as per the following table. BMI Catagory BMI Starvation < 15 Anorexic 15.1 to 17.5 Underweight 17.6 to 18.5 Ideal 18.6 to 24.9 Overweight 25 to 25.9 Obese 30 to 39.9 Morbidly Obese >= 40

Metadata

Property Detail
Author Amit Dutta amitdutta4255@gmail.com
Date 12 Dec 2025
License MIT License (See the LICENSE file for details)
Difficulty Beginner (index: 1 / 10)

Concepts

Beta Feature

This concept detection system is still in beta and may occasionally show incorrect or incomplete results.

  • Recursion
  • Pointers

Actions

Raw View on GitHub

You can print or save this file by opening Raw and using your browser.

Source Code

#include <stdio.h>

int main()
{
    double weight, height, bmi;
    printf("Enter your Weight (in Kilograms) and Height (in Meters) : ");
    scanf("%lf %lf", &weight, &height);
    bmi = weight / (height * height);
    printf("\nCalculated BMI : %g", bmi);
    if (bmi < 15)
        printf("\nBMI Catagory : Starvation");
    else if (bmi >= 15.1 && bmi <= 17.5)
        printf("\nBMI Catagory : Anorexic");
    else if (bmi >= 17.6 && bmi <= 18.5)
        printf("\nBMI Catagory : Underweight");
    else if (bmi >= 18.6 && bmi <= 24.9)
        printf("\nBMI Catagory : Ideal");
    else if (bmi >= 25 && bmi <= 25.9)
        printf("\nBMI Catagory : Overweight");
    else if (bmi >= 30 && bmi <= 39.9)
        printf("\nBMI Catagory : Obese");
    else if (bmi >= 40)
        printf("\nBMI Catagory : Morbidly Obese");
    else
        printf("\nBMI Catagory : Unclassified");
    return 0;
}

Explanation

Explain with AI

Copy the prompt below and paste it into any AI assistant.

    You are explaining a C programming code to a beginner.

    STRICT RULES:

    - Only use the given code. Do NOT assume anything not present.

    - Do NOT add extra examples.

    - Keep explanation clear and short.

    - If something is unclear, say "Not clear from code".

    - Follow the exact format below. Do NOT change headings.

    FORMAT:

    [START]

    ## What it does

    (Explain the overall purpose in 1-2 sentences)

    ## Step-by-step

    (Explain how the code works in steps, simple language)

    ## Key Concepts

    (List concepts like loop, condition, function, etc.)

    ## Notes

    (Mention any limitations, errors, or assumptions)

    [END]

    CODE (luc022.c):

    #include <stdio.h>

    int main()
    {
        double weight, height, bmi;
        printf("Enter your Weight (in Kilograms) and Height (in Meters) : ");
        scanf("%lf %lf", &weight, &height);
        bmi = weight / (height * height);
        printf("\nCalculated BMI : %g", bmi);
        if (bmi < 15)
            printf("\nBMI Catagory : Starvation");
        else if (bmi >= 15.1 && bmi <= 17.5)
            printf("\nBMI Catagory : Anorexic");
        else if (bmi >= 17.6 && bmi <= 18.5)
            printf("\nBMI Catagory : Underweight");
        else if (bmi >= 18.6 && bmi <= 24.9)
            printf("\nBMI Catagory : Ideal");
        else if (bmi >= 25 && bmi <= 25.9)
            printf("\nBMI Catagory : Overweight");
        else if (bmi >= 30 && bmi <= 39.9)
            printf("\nBMI Catagory : Obese");
        else if (bmi >= 40)
            printf("\nBMI Catagory : Morbidly Obese");
        else
            printf("\nBMI Catagory : Unclassified");
        return 0;
    }