Question

Please do it like someone wouldve done it as a beginer programer. Dont use pointer unless it asking for.

/*

Write a program designed to get ages and heights from the user,

then find the average age, average height, and average age/height ratio.

*/

#include <stdlib.h>

#include <stdio.h>

#define MAXNUM 50

typedef struct person

{

int age;

double height;

} Person;

int getData(Person people[], int max)

/*

Get the data from the user and put it in an array of type Person.

You must use a while loop like we did for the exponent lab. Have the user enter

the age prior to entering the loop (negative number or 0 to quit)

Test to be sure the age is > 0, and also test to be sure the data won't overflow the array.

Think about what you need to do inside of the loop.

If there is too much data, print a message to the user and return to the main program

with the current count and the structs that have already been stored in the array.

Returns the number of people read as the value of the function.

*/

void getAverages(Person people[], double *aveAge, double *aveHeight, double *aveRatio, int numPeople)

/*

Calculate the averages here.

You will loop through the array just like you have done in the past in order to include all

numPeople in your calculations

To find the average age/height ratio, take each persons age and divide it by their height,

then calculate the average of all of those values.

*/

void printAverages(double aveAge, double aveHeight, double aveRatio)

/*

3 lines of code to print your results!

Be sure to format it nicely

*/

void main(void)

{

//declare your variables here

// call function getData

// do some debug prints here to be sure you have the correct count and data

// call function getAverages

// call function printAverages

}

/*

A few notes:

1. You will need some local variables in your functions.

2. Hint: This line might be valuable to you: scanf("%d",&people[count].age)

3. What should you do in your main program if getData returns with no data? What would happen

if you called getAverages when numPeople = 0?

4. When you are testing, you might want to make MAXNUM small, maybe 3 or 4. You can

increase it when you have finished testing.

5. When you call getData from your main program, you must capitalize MAXNUM in the

function call.

*/

Answer 1

// do comment if any problem arises

//code

/*

Write a program designed to get ages and heights from the user,

then find the average age, average height, and average age/height ratio.

*/

#include <stdlib.h>

#include <stdio.h>

#define MAXNUM 50

typedef struct person

{

    int age;

    double height;

} Person;

int getData(Person people[], int max)

/*

Get the data from the user and put it in an array of type Person.

You must use a while loop like we did for the exponent lab. Have the user enter

the age prior to entering the loop (negative number or 0 to quit)

Test to be sure the age is > 0, and also test to be sure the data won't overflow the array.

Think about what you need to do inside of the loop.

If there is too much data, print a message to the user and return to the main program

with the current count and the structs that have already been stored in the array.

Returns the number of people read as the value of the function.

*/

{

    printf("Negative number of 0 to quit\n");

    printf("\nEnter age: ");

    // no of people

    int n = 0;

    scanf("%d", &people[n].age);

    while (people[n].age > 0)

    {

        // overflow

        if (n == MAXNUM)

        {

            printf("Maximum limit reached!\n");

            return n;

        }

        printf("Enter height: ");

        scanf("%lf", &people[n++].height);

        printf("\nEnter age: ");

        scanf("%d", &people[n].age);

    }

    return n;

}

void getAverages(Person people[], double *aveAge, double *aveHeight, double *aveRatio, int numPeople)

/*

Calculate the averages here.

You will loop through the array just like you have done in the past in order to include all

numPeople in your calculations

To find the average age/height ratio, take each persons age and divide it by their height,

then calculate the average of all of those values.

*/

{

    *aveAge = 0;

    *aveHeight = 0;

    // iterate over people

    for (int i = 0; i < numPeople; i++)

    {

        *aveAge += people[i].age;

        *aveHeight += people[i].height;

    }

    *aveHeight /= numPeople;

    *aveAge /= numPeople;

    *aveRatio = (*aveAge) / (*aveHeight);

}

void printAverages(double aveAge, double aveHeight, double aveRatio)

/*

3 lines of code to print your results!

Be sure to format it nicely

*/

{

    printf("\nAverage age: %.2lf\n", aveAge);

    printf("Average height: %.2lf\n", aveHeight);

    printf("Average ratio: %.2lf\n", aveRatio);

}

int main()

{

    //declare your variables here

    Person people[MAXNUM];

    double aveAge, aveHeight, aveRatio;

    // call function getData

    int numPeople = getData(people, MAXNUM);

    // no data

    if (numPeople == 0)

        return 0;

    // do some debug prints here to be sure you have the correct count and data

    // call function getAverages

    getAverages(people, &aveAge, &aveHeight, &aveRatio, numPeople);

    // call function printAverages

    printAverages(aveAge, aveHeight, aveRatio);

}

Output:

Negative number of 0 to quit Enter age: 19 Enter height: 150 Enter age: 20 Enter height: 160 Enter age: -4 Average age: 19.50 Average height: 155.00 Average ratio: 0.13