Need help to display the process of partitioning and sorting of quick sorting

i am totally new to programming and i have to do quick sort programming and i can't seem to find the correct code to write for the sorting, this is the best i can do though

insert
Code:

`#include <stdio.h>`

#include <conio.h>

#define cutoff 3

void swap(int *a,int *b)

{

int temp=*a;

*a=*b;

*b=temp;

}

int median(int a[],int left,int right)

{

int center=(left+right)/2;

if(a[left]>a[center])

swap(&a[left],&a[center]);

if(a[left]>a[right])

swap(&a[left],&a[right]);

if(a[right]<a[center])

swap(&a[right],&a[center]);

swap(&a[center],&a[right-1]);

return a[right-1];

}

void insertionsort(int A[],int n)

{

int j,p,temp;

for(p=1;p<n;p++)

{

temp=A[p];

for(j=p;j>0&&A[j-1]>temp;j--)

A[j]=A[j-1];

A[j]=temp;

}

}

void qsort(int a[],int left,int right)

{

int i,j,pivot;

if(left+cutoff<=right)

{

pivot=median(a,left,right);

i=left;

j=right-1;

while(1)

{

while(a[++i]<pivot){}

while(a[--j]>pivot){}

if(i<j)

swap(&a[i],&a[j]);

else

break;

}

swap(&a[i],&a[right-1]);

qsort(a,left,i-1);

qsort(a,i+1,right);

}

else

insertionsort(a+left,right-left+1);

}

void quicksort(int a[],int n)

{

qsort(a,0,n-1);

}

int main()

{

printf("Unsorted array:\n8,5,2,13,1,17,6,4,9,15,7,3\n");

printf("Sorted array: \n");

int a[]={8,5,2,13,1,17,6,4,9,15,7,3};

quicksort(a,12);

int i;

for(i=0;i<12;i++)

{

printf("%d ",a[i]);

}

getch();

}