Compilare: user.cpp: In instantiation of ‘bool SplayTree<T>::erase(SplayTree<T>::Node*&, const T&) [with T = int]’: user.cpp:315:29: required from ‘bool SplayTree<T>::erase(const T&) [with T = int]’ user.cpp:384:23: required from here user.cpp:324:21: warning: unused variable ‘aux’ [-Wunused-variable] Node *newNode, *aux = root; ^ user.cpp: In function ‘int main()’: user.cpp:364:22: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] FIN("hashuri.in"); ^ user.cpp:365:24: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] FOUT("hashuri.out"); ^