UNUSUAL FAILING OF TEST CASES

the following code is giving the correct output FOR THE SAMPLE CASE .
even when i am checking it on local compiler i am getting the right answer.
BUT FAILING ALL THE TEST CASES WHEN I AM SUBMITTING THE code!!

#include
#include
using namespace std;

int main() {

int n;
cin>>n;

int brr[1000];
for(int i=0;i<n;i++){
    int arr[1000];
    int sum=0;
    int New;
    cin>>New;
    for(int j=0; j<New ; j++){
            cin>>arr[j];

    }
    sort(arr,arr+n);
    for(int j = 0; j<New ; j++  ){
        if(arr[j]>0){
            sum +=arr[j];
        }
    }
    brr[i]=sum;
}
for(int i=0;i<n;i++){
    cout<<brr[i]<<endl;
}


return 0;

}
“PLZ CHECK THE CODE AND HELP ME OUT ASAP”

i got my the mistake that i was making in it