Compilare: main.cpp: In function 'void dfsg(int)': main.cpp:26:18: 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:37:18: 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:48:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(!viz[i]) ^~ main.cpp:50:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' while(!s.empty()) ^~~~~ main.cpp:71:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<cc[i].size();j++) ~^~~~~~~~~~~~~