Compilare: user.cpp: In function ‘void Solve(std::vector<std::pair<std::pair<int, int>, int> >&)’: user.cpp:40:54: warning: unused variable ‘st1’ [-Wunused-variable] int st=(*it).first.second, dr=(*it).first.first, st1, dr1; ^ user.cpp:40:59: warning: unused variable ‘dr1’ [-Wunused-variable] int st=(*it).first.second, dr=(*it).first.first, st1, dr1; ^