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
    while(line = await readline()){
        let tokens = line.split('.');
        // console.log(tokens);
        let a = parseInt(tokens[0]);
        // console.log(a);
        let b = parseInt(tokens[1]);
        while (b > 10)
            b = b / 10
        // console.log(b);
        if (b >= 5)
            console.log(a+1);
        else
            console.log(a);
    }
}()