题解 | #记负均正#
记负均正
https://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
import java.util.Scanner; // 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 n = in.nextInt(); int sum = 0; int neNum = 0; float poNum = 0; for (int i = 0; i < n; i++) { int num = in.nextInt(); if (num > 0) { sum += num; poNum++; } else if (num < 0) { neNum++; } } System.out.format("%d %.1f", neNum, poNum == 0 ? poNum : sum / poNum); } }