Compilare: user.cpp: In function ‘void citire()’: user.cpp:19:12: warning: unused variable ‘d’ [-Wunused-variable] int i, d; ^ user.cpp: In function ‘void rez()’: user.cpp:50:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=erase_limit - 1; i<Loc.size() - 1; i++){ ^ user.cpp:28:60: warning: unused variable ‘el’ [-Wunused-variable] int xnod, ynod, i, j, in, erase_limit, surface = 0, d, el; ^