Eroare de compilare: user.cpp: In function ‘void lire()’: user.cpp:26:35: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (p.x<mp.x || p.x==mp.x && p.y<mp.y) mp=p; ^ user.cpp: In function ‘void ca()’: user.cpp:4:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define as a.size() ^ user.cpp:43:26: note: in expansion of macro ‘as’ for (int i=0,q=as; i<as; i++) ^ user.cpp:43:18: warning: unused variable ‘q’ [-Wunused-variable] for (int i=0,q=as; i<as; i++) ^ user.cpp: At global scope: user.cpp:86:6: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main() ^ user.cpp: In function ‘int main()’: user.cpp:90:32: error: ‘sort’ was not declared in this scope sort(a.begin(),a.end(),comp); ^