Compilare: user.cpp: In function ‘void afisareGraf()’: user.cpp:13:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 1; i < graf.size(); i++){ ^ user.cpp:15:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < graf[i].size(); j++){ ^ user.cpp: In function ‘bool magie()’: user.cpp:65:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graf[x].size(); i++){ ^ user.cpp:99:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graf[x].size(); i++){ ^ user.cpp:55:7: warning: variable ‘a’ set but not used [-Wunused-but-set-variable] int a, b; ^ user.cpp:92:13: warning: unused variable ‘q’ [-Wunused-variable] int k = 0,q = 0; ^