Conversazione Messaggio #1879

import java.util.Arrays; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int[] arr = new int[n]; for (int i = 0; i < n; i++) { arr[i] = sc.nextInt(); } sc.close(); int litres = 0; for (int i = 1; i < n-1; i++) { int leftMax = Arrays.stream(arr, 0, i).max().getAsInt(); int rightMax = Arrays.stream(arr, i+1, n).max().getAsInt(); int waterHeight = Math.min(leftMax, rightMax) - arr[i]; if (waterHeight > 0) { litres += waterHeight; } } System.out.println(litres); } }