Compilare: user.cpp: In instantiation of ‘void RedBlackTree<Comparable>::handleReorient(const Comparable&) [with Comparable = int]’: user.cpp:157:40: required from ‘void RedBlackTree<Comparable>::insert(const Comparable&) [with Comparable = int]’ user.cpp:439:71: required from here user.cpp:338:43: warning: suggest parentheses around comparison in operand of ‘!=’ [-Wparentheses] if( item < grand->element != item < parent->element ) ^ user.cpp: In function ‘int main()’: user.cpp:425:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hashuri.in", "r", stdin); ^ user.cpp:426:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hashuri.out", "w", stdout); ^ user.cpp:433:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &N); ^ user.cpp:437:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ", &tip, &x); ^