Problem 5: Pluvial Accumulation (Trapping Rain Water) Problem Statement Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining. Input Format An array of integers height. Example Input: height = [0, 1, 0, 2, 1, 0, 1, 3, 2, 1, 2, 1] Output: 6