Compilare: user.cpp: In function ‘int dfs_ul_ala_blanao(int, int)’: user.cpp:20:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < copii[nod].size(); i++) ~~^~~~~~~~~~~~~~~~~~~ user.cpp:34:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < copii[nod].size(); i++) ~~^~~~~~~~~~~~~~~~~~~ user.cpp:36:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(lant[care_lant[copii[nod][i]]].size() > maxim) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~ user.cpp:44:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < copii[nod].size(); i++) ~~^~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int parcurgere(int, int)’: user.cpp:81:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int dfs_ul_ala_blanao(int, int)’: user.cpp:42:18: warning: ‘care’ may be used uninitialized in this function [-Wmaybe-uninitialized] lant[care].push_back(nod); ^