Compilare: main.cpp: In instantiation of 'bool Tree234<T>::remove(T) [with T = int]': main.cpp:795:15: required from here main.cpp:682:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int, std::allocator<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 682 | for (int i = 0; i < elems.size(); ++i) { | ~~^~~~~~~~~~~~~~ In member function 'void Node<T>::removeValue(int) [with T = int]', inlined from 'void Tree234<T>::insert(T) [with T = int]' at main.cpp:291:30: main.cpp:89:65: warning: array subscript 3 is above array bounds of 'bool [3]' [-Warray-bounds] 89 | this->children[i] = this->children[i + 1]; | ~~~~~~~~~~~~~~~~~~~~^ main.cpp: In member function 'void Tree234<T>::insert(T) [with T = int]': main.cpp:13:14: note: while referencing 'Node<int>::children' 13 | bool children[3]; | ^~~~~~~~ In member function 'void Node<T>::removeValue(int) [with T = int]', inlined from 'void Tree234<T>::insert(T) [with T = int]' at main.cpp:270:30: main.cpp:89:65: warning: array subscript 3 is above array bounds of 'bool [3]' [-Warray-bounds] 89 | this->children[i] = this->children[i + 1]; | ~~~~~~~~~~~~~~~~~~~~^ main.cpp: In member function 'void Tree234<T>::insert(T) [with T = int]': main.cpp:13:14: note: while referencing 'Node<int>::children' 13 | bool children[3]; | ^~~~~~~~