Compilare: main.cpp: In function 'int main()': main.cpp:29:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:31:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' if(d2[start]!=0) ^~ main.cpp:50:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<L[nod].size(); i++) ~^~~~~~~~~~~~~~