Compilare: main.cpp: In function 'int bfs(int)': main.cpp:62:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp:55:15: warning: unused variable 'nod' [-Wunused-variable] int resmx,nod,i; ^~~ main.cpp:55:19: warning: unused variable 'i' [-Wunused-variable] int resmx,nod,i; ^ main.cpp: In function 'void Cerinta2()': main.cpp:91:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<G[nod].size();i++) ~^~~~~~~~~~~~~~