题解 | #记负均正#
记负均正
https://www.nowcoder.com/practice/6abde6ffcc354ea1a8333836bd6876b8
while (line = readline()) {
let arr = readline().split(" ");
let fuNum = arr.filter((item) => parseInt(item) < 0).length; //负数的个数
let zArr = arr.filter((item) => item > 0);//正数的数组
// 正数长度为0，即没有正数
if (zArr.length == 0) {
console.log(fuNum + " " + "0.0");
break;
}
let sum = zArr.reduce((preV, curV) => parseInt(preV) + parseInt(curV)); //正数的总和
let average = (sum / zArr.length).toFixed(1); //正数的平均值
console.log(fuNum + " " + average);
}