deque() - initialize a blank deque. deque(n,x) - initialize a deque of length n with all values as x. push_back(x) - append data x at the end. pop_back() - erase data at the end. push_front(x) - ...

Sliding window problems: Find maximum or minimum elements in a sliding window. Implementation using a Doubly Linked List A doubly linked list is an ideal choice for implementing a deque due to its ...