201609-1 最大波動

下標從1開始遍歷數組，使用一個max變量來記錄最大的差值。差值使用Math.abs來計算

奉上java滿分代碼

import java.util.*;

public class Main{
    public static void main(String[] args){
       Scanner scanner = new Scanner(System.in);
       int n = Integer.parseInt(scanner.nextLine());
       int[] numbers = new int[n];
       String[] line = scanner.nextLine().split(" ");
       for(int i = 0; i < n; i++){
           numbers[i] = Integer.parseInt(line[i]);
       }
       scanner.close();

       int max = 0;
       for(int i = 1; i < n; i++){
           int minus = Math.abs(numbers[i] - numbers[i - 1]);
           if(minus > max)
               max = minus;
       }
       System.out.println(max);
    }
}