题解 | 多组_带空格的字符串_T组形式

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;
    const t = parseInt(await readline());
    while(line = await readline()){
        let tokens = line.split(' ');
        let n = parseInt(tokens[0]);
        let token = await readline();
        let words = token.split(' ').join('').split('');
        let temp = ' '
        for(let i of Array(n >> 1).keys()){
            temp = words[n - i -1];
            words[n-i-1] = words[i];
            words[i] = temp;
        }
        console.log(words.join(''));
    }
}()