题解 | #合并表记录#

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 arr = [];
    while ((line = await readline())) {
        let str = line.split(" ");
        if (str[1]) {
            let index = parseInt(str[0]);
            let value = parseInt(str[1]);
            if (arr[index]) {
                arr[index] += value;
            } else {
                arr[index] = value;
            }
        }
    }
    arr.forEach((value,index) =>{
        console.log(index,value)
    })
})();