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)
}()
