BMI calculator

Check your BMI by using C language code is given below to cmpile code go on this link:https://www.programiz.com/online-compiler/7xlm0LwmvrjE4

Code:

#include <stdio.h>

int main() {
    int choice;
    float height, weight, BMI;
    char weight_check, height_check;

    printf("=== Welcome to the BMI Calculator ===\n");

    do {
        // Reset validation flags
        weight_check = 'n';
        height_check = 'n';

        // Get valid weight
        while (weight_check != 'k') {
            printf("Please enter your weight in kilograms (2.0 - 900.0): ");
            scanf("%f", &weight);

            if (weight >= 2.0 && weight <= 900.0) {
                weight_check = 'k';
                printf("Thank you for your input.\n");
            } else {
                printf("Invalid weight. Try again.\n");
            }
        }

        // Get valid height
        while (height_check != 'k') {
            printf("Please enter your height in meters (0.5 - 4.5): ");
            scanf("%f", &height);

            if (height >= 0.5 && height <= 4.5) {
                height_check = 'k';
                printf("Thank you for your input.\n");
            } else {
                printf("Invalid height. Try again.\n");
            }
        }

        // Calculate BMI
        BMI = weight / (height * height);
        printf("\nYour BMI is: %.2f\n", BMI);

        // Determine BMI category
        if (BMI < 18.5) {
            printf("You are underweight.\n");
        } else if (BMI >= 18.5 && BMI <= 24.9) {
            printf("You have a normal weight.\n");
        } else if (BMI >= 25 && BMI <= 29.9) {
            printf("You are overweight.\n");
        } else {
            printf("You are obese.\n");
        }

        // Menu for user
        printf("\nMenu:\n");
        printf("1. Calculate BMI again\n");
        printf("2. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

    } while (choice == 1);

    printf("Thank you for using the BMI Calculator. Goodbye!\n");

    return 0;
}

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