View Compilation Error

0_0_28254242_4786.cpp: In function 'int main(int, char**)':
0_0_28254242_4786.cpp:128:50: error: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> > >::value_type' has no member named 'size'
                 for (int j = 0; j < (int)Link[i].size(); ++j) AddEdge(i, N + Link[i][j], 1);
                                                  ^
0_0_28254242_4786.cpp:128:85: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> > >::value_type {aka std::pair<int, int>}' and 'int')
                 for (int j = 0; j < (int)Link[i].size(); ++j) AddEdge(i, N + Link[i][j], 1);
                                                                                     ^