Method Pop

flatten_nested_list_iterator_341/solution.go:70–78

()

}

func (s *Stack) Pop() *ListIndex {
	if len(s.items) <= 0 {
		return nil
	}

	val := s.items[len(s.items)-1]
	s.items = s.items[:len(s.items)-1]
	return val
}

func (s *Stack) Peek() *ListIndex {
	if len(s.items) <= 0 {