题解 | 多组_一维数组_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 lines = [];
    let t = 0;
    while(line = await readline()){
        lines.push(line);
        t = parseInt(lines[0]);
        const len = lines.length;
        
        if (t*2+1 === len) {
            for(let i = 2; i < len; i += 2) {
                const numArr = lines[i].split(' ');
                let sum = 0;
                for(let j = 0; j < lines[i-1]; j++) {
                    sum += parseInt(numArr[j]);
                }
                console.log(sum);
            }
        }
    }
}()