Compilare: main.cpp: In function 'void dfsg(int)': main.cpp:11:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfsgt(int)': main.cpp:19:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<gt[nod].size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void ctc()': main.cpp:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<cc[i].size();j++) ~^~~~~~~~~~~~~