Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[nod].size();j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:62:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<comp[i].size();j++) ~^~~~~~~~~~~~~~~ main.cpp:62:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int j=0;j<comp[i].size();j++) ^~~ main.cpp:64:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' out<<"\n"; ^~~