Using QuickSort Ascending and Descending in C language - arrays

Question

The Ascending worked fine but the Descending doesn't. The outcome of the Sorted Descending isn't right...
This is the execution:
Unsorted Array: 20 10 5 27 0 3 15
Ascending Sorted Array: 0 3 5 10 15 20 27
Descending Sorted Array: 27 0 3 5 10 15 20
What seems to be the problem of my code?
#include <stdio.h>
#define size 7
void quickAscending(int array[size], int start, int end){
int temp;
if(start < end){
int pointer = start;
int pivot = array[end];
int count;
for(count = start; count < end; count++)
{
if(array[count] < pivot) //ari change
{
temp = array[count];
array[count] = array[pointer];
array[pointer] = temp;
pointer++;
}
}
temp = array[end];
array[end] = array[pointer];
array[pointer] = temp;
quickAscending(array, start, pointer-1);
quickAscending(array, pointer+1, end);
}
}
void quickDescending(int array[size], int start, int end){
int temp;
if(start < end){
int pointer = start;
int pivot = array[end];
int count;
for(count = start; count < end; count++)
{
if(array[count] > pivot)
{
temp = array[count];
array[count] = array[pointer];
array[pointer] = temp;
pointer++;
}
}
temp = array[end];
array[end] = array[pointer];
array[pointer] = temp;
quickAscending(array, start, pointer-1);
quickAscending(array, pointer+1, end);
}
}
void displayArray(int array[size]){
int count;
for(count = 0; count < size; count++){
printf("%d ", array[count]);
}
}
int main(){
int array[size] = {20, 10, 5, 27, 0, 3, 15};
printf("Unsorted Array: ");
displayArray(array);
quickAscending(array, 0, size - 1);
printf("\n\nAscending Sorted Array: ");
displayArray(array);
quickDescending(array, 0, size - 1);
printf("\nDescending Sorted Array: ");
displayArray(array);
}
I did my best to analyze where I might go wrong but my brain isn't working anymore :(

Answer 1

Looks like the problem is with copy-pasting your code. You need to call quickDescending instead of quickAscending inside quickDescending function.
void quickDescending(int array[size], int start, int end){
int temp;
...
...
temp = array[end];
array[end] = array[pointer];
array[pointer] = temp;
quickDescending(array, start, pointer-1);//Changed to quickDescending
quickDescending(array, pointer+1, end);//Changed to quickDescending
}
}
void displayArray(int array[size]){