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push_swap

push_swap which calculates and displays the instructions, that sorts the integers received as arguments.

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Assignment

You have 2 stacks named a and b.

  • At the beginning:

    • The stack a contains a random amount of negative and/or positive numbers which cannot be duplicated.
    • The stack b is empty.
  • The goal is to sort in ascending order numbers into stack a. To do so you have the following operations:

    • 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.

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Result: 1️⃣0️⃣0️⃣ / 1️⃣0️⃣0️⃣ ✔️