Compilare: user.cpp: In function ‘void read()’: user.cpp:21:18: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] in>>v[i] + 1; ^ user.cpp: In function ‘int dfs(int)’: user.cpp:55:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void solve()’: user.cpp:68:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(adj[*it].size() < k) ^ user.cpp: In function ‘int main()’: user.cpp:85:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(adj[i].size() < k) ^