Bottom of the Pile

The FIRST pancake — the legendary burnt one — sits at the bottom. Reach it without wrecking the pile! 🥞

You get the pile bottom to top (at least one item). Using only push and pop (no peeking inside!), move things to a helper pile to reach the bottom item. Print the bottom item, then the restored pile, comma-separated, on two lines.

Example:

Input: pile = ["burnt", "golden", "fluffy"] Output:

burnt
burnt,golden,fluffy

Popping fluffy and golden onto a helper pile reaches burnt at the bottom. Pouring the helper back on top restores the original order.