题解 | 最大的差

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int[] numbers = new int[n];
        
        for (int i = 0; i < n; i++)
        {
            numbers[i] = scanner.nextInt();
        }
        
        int maxVal = numbers[0];
        int minVal = numbers[0];
        
        for (int i = 1; i < n; i++)
        {
            if (numbers[i] > maxVal)
            {
                maxVal = numbers[i];
            }
            if (numbers[i] < minVal)
            {
                minVal = numbers[i];
            }
        }
        
        System.out.println(maxVal - minVal);
    }
}