Help the Integer

Hi, I am getting wrong answer in the follwing question:-

http://www.codechef.com/SEPT13/problems/INTEG

I am not getting which test case I am missing ,Kindly help me

#include<iostream>
#include<cmath>
#include<algorithm>
using namespace std;
int main()
{

       long long  int answer=0;
        int n;
        cin>>n;
        int a[n];
        int totalneg=0;
        int temp;
        for(int i=0;i<n;i++)
        {
            cin>>a[i];

        }
        for(int i=0;i<n;i++)
        {
            if(a[i]<0)
            {
                totalneg++;
            }
        }
        int all;
        cin>>all;
        if(totalneg==0 || all==0)
        {
            cout<<answer<<"\n";
            return 0;
        }
        if(totalneg<=all)
        {
            for(int i=0;i<n;i++)
            {
                if(a[i]<0)
                    answer=answer+fabs(a[i]);
            }

        }
        else if(totalneg>all )
        {
            sort(a,a+n);
            int sub=totalneg-all;
            //cout<<sub;
            int temp1=fabs(a[totalneg-sub]);
            int p=temp1*all;
           // cout<<p<<"dsadasd";
            answer=answer+p;
            for(int i=0;i<n;i++)
            {
                a[i]=a[i]+temp1;
             //   cout<<a[i]<<"sadsada";
            }
            for(int i=0;i<totalneg;i++)
            {
                if(a[i]<0)
                {
                    answer=answer+fabs(a[i]);
                }
            }
        }
       cout<<answer<<"\n";

    return 0;
}