Compilare: main.cpp: In function 'int main()': main.cpp:121:29: warning: 'deq.Deque<Elem>::_size' may be used uninitialized in this function [-Wmaybe-uninitialized] 121 | while (!deq.empty() && x <= deq.back().value) { | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:96:9: warning: 'deq.Deque<Elem>::backNode' may be used uninitialized in this function [-Wmaybe-uninitialized] 96 | delete oldNode; | ^~~~~~~~~~~~~~ main.cpp:111:17: note: 'deq.Deque<Elem>::backNode' was declared here 111 | Deque<Elem> deq; | ^~~ main.cpp:64:32: warning: 'deq.Deque<Elem>::frontNode' may be used uninitialized in this function [-Wmaybe-uninitialized] 64 | frontNode = frontNode->next; | ~~~~~~~~~~~^~~~ main.cpp:111:17: note: 'deq.Deque<Elem>::frontNode' was declared here 111 | Deque<Elem> deq; | ^~~