[C] Ciagi liczb rzeczywistych

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


struct Sequence
{
    int length;
    double *firstElement;
    struct Sequence *next;
};


void loadData(struct Sequence **SequencePointer, int sequenceLength)
{
    int i;


    (*SequencePointer)->next = NULL;
    (*SequencePointer)->length = sequenceLength;
    (*SequencePointer)->firstElement = (double*)malloc(sizeof(double)*sequenceLength);

    printf("Podaj wyrazy ciagu (%d):\n", sequenceLength);
    for (i = 0; i < (*SequencePointer)->length; i++)
    {
        scanf("%lf", &((*SequencePointer)->firstElement[i]));
    }
}


int addSequence(struct Sequence **headPointer)
{
    struct Sequence *pointer;
    int sequenceLength;

    pointer = *headPointer;

    printf("Podaj dlugosc ciagu: ");
    scanf("%d", &sequenceLength);


    if(sequenceLength == 0)
    {
        return 0;
    }

    if (pointer == NULL)
    {
        pointer = (struct Sequence*)malloc(sizeof(struct Sequence));
        loadData(&pointer, sequenceLength);
        *headPointer = pointer;
        return 1;
    }
    else
    {
        while (pointer->next != NULL)
        {
            pointer = pointer->next;
        }
        pointer->next = (struct Sequence*)malloc(sizeof(struct Sequence));
        pointer = pointer->next;
        loadData(&pointer, sequenceLength);
        return 1;
    }
}


void findAverages(struct Sequence *headSequence, double *maxAverage, double *minAverage, struct Sequence **minAverageSequence, struct Sequence **maxAverageSequence)
{
    double average;
    int i;

    *maxAverage = 0;
    *minAverage = 0;
    average = 0;
    if(headSequence != NULL)
    {
        for (i = 0; i < headSequence->length; i++)
        {
            average += headSequence->firstElement[i];
        }
        average /= headSequence->length;
        *maxAverage = average;
        *minAverage = average;
        *minAverageSequence = headSequence;
        *maxAverageSequence = headSequence;

        while (headSequence->next != NULL)
        {
            average = 0;
            headSequence = headSequence->next;
            for (i = 0; i < headSequence->length; i++)
            {
                average += headSequence->firstElement[i];
            }
            average /= headSequence->length;

            if (*maxAverage < average)
            {
                *maxAverage = average;
                *maxAverageSequence = headSequence;
            }
            if (*minAverage > average)
            {
                *minAverage = average;
                *minAverageSequence = headSequence;
            }
        }
    }
}


int main()
{
    struct Sequence *headSequence, *minAverageSequence, *maxAverageSequence;
    double maxAverage, minAverage;


    headSequence = NULL;

    while(addSequence(&headSequence));

    findAverages(headSequence, &maxAverage, &minAverage, &minAverageSequence, &maxAverageSequence);

    printf("Srednia MIN: %lf (ciag skladajacy sie z wyrazow w liczbie: %d)\n", minAverage, minAverageSequence->length);
    printf("Srednia MAX: %lf (ciag skladajacy sie z wyrazow w liczbie: %d)\n", maxAverage, maxAverageSequence->length);



    return 0;
}