- doubly circular linked list basic module
- sa :swap a - swap the first 2 elements at the top of stack a. Do nothing if there is only one or no elements).
- sb :swap b- swap the first 2 elements at the top of stack b. Do nothing if there is only one or no elements).
- ss :sa and sb at the same time.
- pa :push a- take the first element at the top of b and put it at the top of a. Do nothing if b is empty.
- pb :push b- take the first element at the top of a and put it at the top of b. Do nothing if a is empty.
- ra :rotate a- shift up all elements of stack a by 1. The first element becomes the last one.
- rb :rotate b- shift up all elements of stack b by 1. The first element becomes the last one.
- rr :ra and rb at the same time.
- rra :reverse rotate a- shift down all elements of stack a by 1. The last element becomes the first one.
- rrb :reverse rotate b- shift down all elements of stack b by 1. The last element becomes the first one.
- rrr :rra and rrb at the same time.
- get_arguments func
- get and apply operations func
- finish the checker program
[x]