题解 | 单组_二维数组

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 first = await readline();
    let firstT = first.split(' ');
    let n = parseInt(firstT[0]);
    let m = parseInt(firstT[1]);
    let res = 0;
    while(line = await readline()){
        let tokens = line.split(' ');
        for(let i of Array(m).keys()){
            res += parseInt(tokens[i]);
        }
    }
    console.log(res);
}()