0_0_37772647_10436.cpp: In function 'void solve()': 0_0_37772647_10436.cpp:16:36: error: expected '}' at end of input for (int i = 2; i <= 2 * n; ++ i) { ^ 0_0_37772647_10436.cpp:16:36: error: expected '}' at end of input