I have tried but i am getting error.
int main() {
int t;
cin>>t;
for(int l =0 ; l<t ; l++){
int n;
cin>>n;
int maxsum=INT_MIN;
int a[n];
for(int m = 0 ; m< n ; m++){
cin>>a[m];
}
for(int i=0;i<n; i++){
int sum=a[i],j=i+1;
while(j!=i){
int k = i;
while(k!=j){
sum += a[k];
k++;
if(k==n){
k=k%n;
}
}
j++;
if(j==n){
j=j%n;
}
}
if(maxsum<sum){
maxsum=sum;
}
}
cout<<maxsum;
}
return 0;
}