Eroare de compilare: user.cpp: In function ‘void dfs(Node*, int)’: user.cpp:67:29: error: ‘max’ was not declared in this scope ans = max(ans, depth); ^ user.cpp: In function ‘int main()’: user.cpp:79:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,k,m,mn,id; ^ user.cpp:79:15: warning: unused variable ‘m’ [-Wunused-variable] int i,j,k,m,mn,id; ^ user.cpp:80:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("home.in", "r", stdin); ^ user.cpp:81:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("home.out", "w", stdout); ^ user.cpp:82:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:90:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s[i]+1); ^