Compilare: main.cpp: In function 'void dfs(int)': main.cpp:13:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:22:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g2[nod].size();i++){ ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:53:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(comp[i].size()>lmax){ ~~~~~~~~~~~~~~^~~~~ main.cpp:72:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<comp[cmax].size();i++) ~^~~~~~~~~~~~~~~~~~