Compilare: main.cpp: In function 'void drum(int)': main.cpp:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<L[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:16:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(f[vec]==0) ^~ main.cpp:18:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if(D[nod]<D[vec]){ ^~ main.cpp: In function 'void lexic(int)': main.cpp:34:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<L[nod].size();i++){ ~^~~~~~~~~~~~~~