Compilare: user.cpp: In function ‘int main()’: user.cpp:37:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < graf[pVerif].size(); i++) { ~~^~~~~~~~~~~~~~~~~~~~~ user.cpp:50:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < graf[pVerif].size(); i++) { ~~^~~~~~~~~~~~~~~~~~~~~ user.cpp:69:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < aux.size(); i++) { ~~^~~~~~~~~~~~ user.cpp:23:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^