Count the Swaps

How much WORK did the bubbles do? Every swap costs one bubble-coin. 🪙

You get a list of nums. Bubble-sort it, but print only the TOTAL number of swaps it took.

Example:

Input: nums = [3, 1, 2] Output: 2

Bubble-sorting swaps 3 and 1 (3,1,2 → 1,3,2), then swaps 3 and 2 (1,3,2 → 1,2,3) — 2 swaps in total.