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 max = Integer.MIN_VALUE;
        int min = Integer.MAX_VALUE;

        for (int i = 0; i < n; i++) {
            int num = scanner.nextInt();
            if (num > max) {
                max = num;
            }
            if (num < min) {
                min = num;
            }
        }

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