题解 | 取近似值

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void async function () {
    // Write your code here
    let num = await readline()
    const numArr = num.split(".")
    let res = numArr[0]
    if(numArr[1].charAt(0) >= 5) {
       res =Number(numArr[0]) +1
    } 
    console.log(res)
}()