题解 | 记负均正II

#牛客创作赏金赛# #刷题我是认真的#

解题思路很直观，就没必要写了

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int negNum = 0;
        int sum = 0;
        int posNum = 0;
        while (in.hasNextInt()) {
            int num = in.nextInt();
            if (num < 0) {
                negNum++;
            } else {
                posNum++;
                sum += num;
            }
        }
        System.out.println(negNum);
        if (sum > 0) {
            System.out.println(String.format("%.1f", (float)sum / posNum));
        } else {
            System.out.println("0.0");
        }
    }
}