Coding interview practice, out loud. You type, you talk, and Coco marks your code like a tutor with a pen.
The editor is free. Coco is in private pilot.

def reverse(head):curr = headprev = Nonewhile curr:curr.prev, curr.next = curr.next, curr.prevprev = currcurr = curr.nextreturn prev
after line 5, where does curr.next point?
The learner, out loud: “it flips the arrows and… goes to the next one”
In the room you talk while you type. Practice exactly that. Write your code, run it, and say why it works.
Coco listens and marks the line you are unsure of. She asks one question at a time. She never hands you the fix.

Same partner, same habit: tell the story out loud until it sticks. Coco takes that round next.
Write your code, run it, and explain it out loud. The editor is free.
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