#include <iostream> using namespace std; const int N=2e5+10; int a[N]; void solve() { int n; cin>>n; for(int i=1;i<=n;i++) { cin>>a[i]; } for(int i=1;i<=(n/2);i+++) { if(a[i]!=a[i+(n/2)]-(n/2)) { cout<<-1<<endl; return; } } cout<<0<<' '<<0<<endl; } int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); int t; cin>>t; while(t--) { solve(); } }

cat.cpp: In function 'void solve()':
cat.cpp:14:34: error: expected primary-expression before ')' token
   14 |         for(int i=1;i<=(n/2);i+++)
      |                                  ^