Eroare de compilare: user.cpp: In function ‘double distPP(std::pair<int, int>, std::pair<int, int>)’: user.cpp:6:17: error: ‘signed’ or ‘unsigned’ invalid for ‘type name’ #define LD long double ^ user.cpp:20:27: note: in expansion of macro ‘LD’ return sqrt((unsigned LD)(a.first-b.first)*(a.first-b.first) + (unsigned LD)(a.second-b.second) * (a.second-b.second)); ^ user.cpp:6:17: error: ‘signed’ or ‘unsigned’ invalid for ‘type name’ #define LD long double ^ user.cpp:20:78: note: in expansion of macro ‘LD’ return sqrt((unsigned LD)(a.first-b.first)*(a.first-b.first) + (unsigned LD)(a.second-b.second) * (a.second-b.second)); ^ user.cpp: In function ‘double cmap()’: user.cpp:38:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^