Compilare: main.cpp: In function 'void dfs(int)': main.cpp:13:10: warning: variable 'frunza' set but not used [-Wunused-but-set-variable] bool frunza = true; ^~~~~~ main.cpp: In function 'int main()': main.cpp:55:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("arborest.in", "r", stdin); ^ main.cpp:56:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("arborest.out", "w", stdout); ^ main.cpp:58:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &k); ^ main.cpp:66:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &TT[i]); ^