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
    while(line = await readline()){
        let num = Number(line)
        let obj = new Array()
        for(let i = 0; i < num; ++i) {
            let temp = await readline()
            let arr = temp.split(' ')
            if(!obj[arr[0]]) {
                obj[arr[0]] = Number(arr[1]) 
            } else {
                obj[arr[0]] += Number(arr[1])
            }
        }
        for(let j in obj) {
            console.log(j,obj[j])
        }
    }
}()