Compilare: user.cpp: In function ‘int main()’: user.cpp:167:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zeap.in", "r", stdin); ^ user.cpp:168:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zeap.out", "w", stdout); ^ user.cpp: In function ‘int remove(int, cell**, bool)’: user.cpp:132:18: warning: ‘temp’ may be used uninitialized in this function [-Wmaybe-uninitialized] temp->next[pre] = sL->next[level]; ^