runtime error in c

can anyone tell why i am getting runtime error??
#include <stdio.h>
int main()
{
int i,m,n,j,k,list[10000],inc[10000];
scanf("%d",&n);
for(i=0;i<n;i++)
scanf("%d",&list[i]);
qsort(list,0,n-1);

for(i=0;i<n;i++)
{ inc[i]=list[i];
printf("%d\n",inc[i]);}
return 0;
}
void qsort(int arr[],int start,int end)
{
int p;
if (start<end)
{
partition(arr,start,end,&p);
qsort(arr,start,p-1);
qsort(arr,p+1,end);
}
}
void partition(int arr[],int start,int end,int *p)
{
int l,i=start,arr2[100],temp;
int j=end;
for(l=start;l<=end;l++)
{
if(arr[l]>=arr[start])
{
arr2[i]=arr[l];
i++;
}
else
{
arr2[j]=arr[l];
j–;
}
}

    temp=arr2[j];
    arr2[j]=arr2[start];
    arr2[start]=temp;
    *p=j;
    for(i=start;i<=end;i++)
    {
        arr[i]=arr2[i];
    }
}

Write the code in proper way We cannot understand you code.Write it & then upload it in a proper manner

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