[数据结构与算法]CSP 202109-1 数组推导（Java）

题目链接：

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import java.util.Scanner;

public class Main {

    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int i;
        int pre = scanner.nextInt();
        if(n == 1) {
            System.out.println(pre);
            System.out.println(pre);
        }else{
            int a;
            int min = pre, max = pre;
            for(i = 1; i < n; i++){
                a = scanner.nextInt();
                max += a;
                if(a == pre){
                    min += 0;
                }else{
                    min += a;
                    pre = a;
                }
            }
            System.out.println(max);
            System.out.println(min);
        }

    }

}