Compilare: user.cpp: In function ‘void actualizare_arbint(int, int, int)’: user.cpp:22:9: warning: unused variable ‘x’ [-Wunused-variable] int x, y; ^ user.cpp:22:12: warning: unused variable ‘y’ [-Wunused-variable] int x, y; ^ user.cpp: In function ‘void parcurgere_euler(int, int)’: user.cpp:5:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define FOR(i, a, b) for(int i = (a); i <= (b); i++) ^ user.cpp:65:9: note: in expansion of macro ‘FOR’ FOR(i, 0, u[nod].size()-1) ^ user.cpp: In function ‘void debug()’: user.cpp:5:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define FOR(i, a, b) for(int i = (a); i <= (b); i++) ^ user.cpp:75:5: note: in expansion of macro ‘FOR’ FOR(i, 0, euler.size()-1) ^