View Compilation Error

0_0_6926304_26588.cpp: In function `void Init(int, int, int)':
0_0_6926304_26588.cpp:32: error: request for member `clear' in `V', which is of non-class type `std::vector<std::pair<int, int>, std::allocator<std::pair<int, int> > >[280000]'
0_0_6926304_26588.cpp:46: error: request for member `clear' in `V', which is of non-class type `std::vector<std::pair<int, int>, std::allocator<std::pair<int, int> > >[280000]'