题解 | #最高分与最低分之差#

import java.util.Scanner;
public class Main {
    
    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int max = Integer.MIN_VALUE;
        int min = Integer.MAX_VALUE;
        while(sc.hasNextInt()) {
            int score = sc.nextInt();
            if(max < score) {
                max = score;
            }
            if(min > score) {
                min = score;
            }
        }
        System.out.println(max - min);
    }
}