Compilare: main.cpp: In function 'void dfs(int)': main.cpp:12:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<L[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:16:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(d[vecin]>0) ^~ main.cpp:18:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' sol=max(sol,d[nod]); ^~~