my output is coming correct on ide but showing wrong ans on hackerblocks
#include
#include
using namespace std;
int main() {
int t;
cin>>t;
int i,j,k,l;
for(i=0;i<t;i++){
int n;
cin>>n;
int a[1000];
for(j=0;j<n;j++)
cin>>a[j];
int flag=0;
int cs=0;
int ms=0;
for(j=0;j<n,flag!=2;j++){
if(flag==1&&j==n-1){
flag++;
continue;
}
cs=cs+a[j];
if(cs<0)
cs=0;
ms=max(cs,ms);
if (j==n-1)
{
j=-1;
flag++;
}
}
cout<<ms;
}
return 0;
}