Compilare: main.cpp: In function 'void dfs(int)': main.cpp:23:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<lista[nod].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:206:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:215:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' if(cer==2) ^~