Program to sort the numbers entered by user in ascending and descending order using function

#include<stdio.h>

void ascending (int[],int);

void descending (int[],int);

int main()

{

    int a[20],i,n;

    printf("How many numbers?");

    scanf("%d",&n);

    printf("Enter %d numbers:",n);

    for(i=0;i<n;i++)

    {

        scanf("%d",&a[i]);

    }

    ascending(a,n);

    descending(a,n);

    return 0;

}

void ascending(int a[],int n)

{

    int i,j,temp;

    printf("\nNumbers sorted in ascending order:\n");

    for(i=0;i<n;i++)

     {

         for(j=i+1;j<n;j++)

         {

             if(a[i]>a[j])

             {

                 temp=a[i];

                 a[i]=a[j];

                 a[j]=temp;

             }

         }

     }

     for(i=0;i<n;i++)

     {

         printf("%d\t",a[i]);

     }

}

void descending(int a[],int n)

{

    int i, j,temp;

    printf("\nNumbers sorted in descending order:\n");

    for(i=0;i<n;i++)

    {

        for(j=i+1;j<n;j++)

        {

            if(a[i]<a[j])

            {

                temp=a[i];

                a[i]=a[j];

                a[j]=temp;

            }

        }

    }

  for(i=0;i<n;i++)

  {

      printf("%d\t",a[i]);

  }

}