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- const readline = require("readline");
-
- const rl = readline.createInterface(
- process.stdin, process.stdout
- );
- let student_num = 10;
- let grades = new Array(student_num); // 类似于C/C++中数组的数据结构,空间复杂度O(n)
-
- function input(remain_times) {
- if (remain_times <= 0) {
- rl.close();
- return;
- }
- rl.question("", (answer) => {
- grades[student_num - remain_times] = parseFloat(answer); // 暂时不考虑输入错误
- input(remain_times - 1);
- });
- }
- rl.on("close", () => {
- let sum = grades.reduce((sum, current) => {
- return sum + current;
- }, 0); // 时间复杂度O(n)
- let average = sum / student_num;
- console.log("高于平均分的学生成绩为:", grades.filter((grade) => grade > average)); // 时间复杂度O(n)
- });
- rl.write("输入"+student_num+"名学生的成绩,一个一行:\n");
- input(student_num);
-
- // 输入10名学生的成绩,一个一行:
- // 1
- // 2
- // 3
- // 4
- // 5
- // 6
- // 7
- // 8
- // 9
- // 10
- // 高于平均分的学生成绩为: [ 6, 7, 8, 9, 10 ]
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