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 numberCount = in.nextInt();
int sum = 0;
int negaCount = 0;
int zeroCount = 0;
for (int i = 0; i < numberCount; i++) {
int temp = in.nextInt();
if (temp < 0) {
negaCount++;
} else if (temp == 0) {
zeroCount++;
} else {
sum += temp;
}
}
String result = "0.0";
if (sum != 0) {
double r = sum / (double) (numberCount - negaCount - zeroCount);
result = String.format("%.1f", r);
}
System.out.println(negaCount + " " + result);
}
}
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