Compilare: user.cpp:89:4: warning: "/*" within comment [-Wcomment] /* v[1] = sol; user.cpp: In function ‘int dfs(int)’: user.cpp:15:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<L[nod].size();i++){ ~^~~~~~~~~~~~~~ user.cpp:21:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int solve(int)’: user.cpp:25:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<L[nod].size();i++){ ~^~~~~~~~~~~~~~ user.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^