题解 | 最大的差

import java.util.Scanner;
//首a表示多少组
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
            int a = in.nextInt();
            int[] numbers = new int[a];
            for(int i = 0 ; i <= a - 1 ; i++){
                int b = in.nextInt();
                numbers[i] = b;
            }
            
           int max = numbers[0];
           int min = numbers[0];

            for(int num : numbers){
                if(num > max)max = num;
                if(num < min)min = num;
           }

           System.out.println(max - min);
    }
}