Compilare: main.cpp: In function 'void bfs()': main.cpp:12:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<stiv.size(); i++) ~^~~~~~~~~~~~ main.cpp:15:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<muchii[nod].size(); j++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:27:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<gf[nod].size(); i++) ~^~~~~~~~~~~~~~~