Compilare: main.cpp: In function 'void bfs(int, int*)': main.cpp:22:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<G[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:54:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<sol.size()-1;i++) ~^~~~~~~~~~~~~ main.cpp:57:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1;j<sol.size();j++) ~^~~~~~~~~~~ main.cpp:73:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<sol.size();i++) ~^~~~~~~~~~~ main.cpp:52:9: warning: unused variable 'e' [-Wunused-variable] int e=0; ^