functions.c

#include<stdio.h>
#include<stdlib.h>

//fun declaration
void area();
void BMI();
void  lucky();
void  gold();
int max(int i1, int i2);
int main()
{
    int ans = 0;
    do {
        printf("menu\n");
        printf("-------\n");
        printf("1-area calculation\n");
        printf("2-gold calculation\n");
        printf("3-bmi calculation\n");
        printf("4-lucky baydin\n");
        printf("5-maximum number test\n");
        printf("0-exit\n");
        printf("Choose one please (0,1,2,3,4,5): ");
        scanf_s("%d", &ans);
        printf("\n\n");
        switch (ans) {
        case 0: exit(0); break;
        case 1: area(); break;
        case 2: gold();  break;
        case 3: BMI(); break;
        case 4: lucky(); break;
        case 5:  int a = 0; int b = 0;
            int c = 0;
            printf("Please Enter First Integer: ");
            scanf_s("%d", &a);
            printf("Please Enter Second Integer: ");
            scanf_s("%d", &b);
            c = max(a, b);
            printf("max number is %d\n", c);
            break;

        }
        printf("\n\n");
    } while (ans != 0);


    return 0;
}

void area() //fun definition
{
    //Input storatge
    float L = 0.0;
    float W = 0.0;
    //Output storage
    float A = 0.0;

    printf("Please enter L: ");
    scanf_s("%f", &L);

    printf("Please enter W: ");
    scanf_s("%f", &W);

    A = L * W;

    printf("Area = %0.2f\n\n", A);

}

void BMI()
{
    float weight = 0.0;
    float height = 0.0;
    float BMI = 0.0;
    float feet = 0.0;
    float inches = 0.0;
    int i = 0;

    printf("enter your weight in kg: ");
    scanf_s("%f", &weight);

    weight = weight * 2.2;
    printf("your weight is %f pounds\n", weight);

    printf("enter your height  (feet:) ");
    scanf_s("%f", &feet);
    printf("enter your height  (inches:) ");
    scanf_s("%f", &inches);

    height = (feet * 12) + inches;
    printf("your height in  (inches:) is %f inches\n", height);

    BMI = (weight / (height * height)) * 703; //w=lb, h=inches

    printf("Your BMI is %f \n", BMI);

    if (BMI < 18.5)
    {
        printf("you are underweight\n");
    }
    else if ((BMI >= 18.5) && (BMI < 24.9))
    {
        printf("you are normal\n");
    }
    else if ((BMI >= 24.9) && (BMI < 29.9))
    {
        printf("you are overweight\n");
    }
    else
    {
        printf("you are Obese\n");
    }
    printf("\n\n");


}

void  gold()
{
    float kyat = 0.0;
    float pae = 0.0;
    float yway = 0.0;
    float kyats = 0.0;
    float price_per_kyat = 0.0;
    float total_gold_price = 0.0;

    printf("Please enter price_per_kyat value : ");
    scanf_s("%f", &price_per_kyat);

    printf("Please enter gold weight (kyat pae yway) : ");
    scanf_s("%f %f %f", &kyat, &pae, &yway);

    kyats = kyat + pae / 16 + yway / 128;
    total_gold_price = price_per_kyat * kyats;

    printf("Total gold weights is %f kyats and Total price is %f kyats \n\n", kyats, total_gold_price);


}

void  lucky()
{
    int year = 0;
    int month = 0;
    int day = 0;

    int sum = 0;
    int mod = 0;

    printf("Lucky Star\n");
    printf("==========\n");

    for (int i = 0; i < 1; i++) //i++ -> i = i+1;
    {
        printf("Please enter birthday dd-mm-yyyy : ");
        scanf_s("%d-%d-%d", &day, &month, &year);

        sum = year + month + day;
        mod = sum % 3;
        if (mod == 0)
        {
            printf("You are not LUCKY\n");
        }
        else if (mod == 1)
        {
            printf("You are NORMAL\n");
        }
        else if (mod == 2)
        {
            printf("You are  LUCKY\n");
        }
        else {
            printf("Invalid data\n");
        }
    }


}

int max(int i1, int i2)
{
    int bigger = 0;
    if (i1 > i2)
    {
        bigger = i1;
    }
    else {
        bigger = i2;
    }
    return bigger;
}