Compilare: main.cpp: In function 'bool verif(int, int)': main.cpp:43:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<alb[x].size(); i++) ~^~~~~~~~~~~~~~ main.cpp:51:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<rosu[x].size(); i++) ~^~~~~~~~~~~~~~~ main.cpp:59:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<negru[x].size(); i++) ~^~~~~~~~~~~~~~~~ main.cpp: In function 'void solve(int, int)': main.cpp:89:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<alb[nod].size(); i++) ~^~~~~~~~~~~~~~~~ main.cpp:99:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<negru[nod].size(); i++) ~^~~~~~~~~~~~~~~~~~ main.cpp:109:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<rosu[nod].size(); i++) ~^~~~~~~~~~~~~~~~~