The Last Time It Appears

Same sorted leaderboard — now find where the target score appears for the LAST time. 🏅

You get a SORTED list of nums (with repeats) and a target that appears at least once. Print the position of its last appearance, using the split-in-half strategy.

Example:

Input: nums = [1, 4, 4, 4, 7, 9], target = 4 Output: 3

Binary search lands on a 4, then keeps checking the right half until it finds the latest one, at position 3.