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0_0_3115699_26329.cpp: In function `int calc()':
0_0_3115699_26329.cpp:31: error: request for member `begin' in `a', which is of non-class type `std::vector<int, std::allocator<int> >[100]'
0_0_3115699_26329.cpp:31: error: request for member `end' in `a', which is of non-class type `std::vector<int, std::allocator<int> >[100]'