A_141212_OrdenarArray, C (gcc)

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//Titulo del ejersisioh

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

#define _T 100

void mostrarArray(long tam , short a[tam]);
void darValorAleatorioArray
 (long tam, short a[tam], short lI, short lS);
void ordenarArray(long tam, short a[tam]);
void intercambiar(short*a, short*b);
double calculoMediaArray(long tam, short a[tam]);

int main(void)
 {
    short array[_T];
    short lInf, lSup;
    
    printf("Límite inferior: "); 
    scanf(" %hd", &lInf);
    printf("Límite superior: "); 
    scanf(" %hd", &lSup);
    
    darValorAleatorioArray(_T, array, lInf, lSup);
    mostrarArray(_T, array);
    printf("\n\n");
    ordenarArray(_T, array);
    mostrarArray(_T, array);
    double media = calculoMediaArray(_T, array);
    printf("\n\n\nLa media es: %.2lf\n", media);
    printf("\n\n");
    
    return 0;
}

void mostrarArray(long tam , short a[tam])
{
    long i;
    for(i = 0 ; i < tam ; i++)
    {
        if(i % 5 == 0) printf("\n");
        printf("%8hd", a[i]);
    }
    return;
}

void darValorAleatorioArray
(long tam, short a[tam], short lI, short lS)
{
    long i;
    for(srand(time(NULL)), i = 0 ; i < tam ; i++)
    {
        a[i] = lI + rand() % (lS - lI + 1);
    }
    return;
}

void ordenarArray(long tam, short a[tam])
{
    long i, j;
    for(i = 0 ; i < tam ; i++)
    {
        for(j = i + 1 ; j < tam ; j++)
        {
            if(a[i] > a[j])
            {
                intercambiar(&a[i], &a[j]);
            }
        }
    }
    return;
}

void intercambiar(short*a, short*b)
{
    short aux = *a;
    *a = *b;
    *b = aux;
    return;
}

double calculoMediaArray(long tam, short a[tam])
{
    double suma;
    long i;
    for(suma = 0 ,i = 0 ; i < tam ; i++)
    {
        suma += a[i];
    }
    return;    
}

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Compilation time: 0.23 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 0.38 sec