jim_ans_the_order.js

// boiler plate for js 
'use strict';

const fs = require('fs');

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;

process.stdin.on('data', function(inputStdin) {
    inputString += inputStdin;
});

process.stdin.on('end', function() {
    inputString = inputString.split('\n');

    main();
});

function readLine() {
    return inputString[currentLine++];
}

/*
 * Complete the 'jimOrders' function below.
 *
 * The function is expected to return an INTEGER_ARRAY.
 * The function accepts 2D_INTEGER_ARRAY orders as parameter.
 */

function jimOrders(orders) {
    // Write your code here
    let arr=[]
    for(let i=0;i<orders.length;i++){
      arr.push([i+1,orders[i][0]+orders[i][1]])
    }
    // arr[i][0] represent the customers 
    // arr[i][1] represent the server time 
    // ⬇️ below we sort by serve time in ascending order 
    arr=arr.sort((a,b)=>a[1]-b[1])
   for(let i=0;i<arr.length;i++){
     arr[i]=arr[i][0]
   }
    return arr
    

}

function main() {
    const ws = fs.createWriteStream(process.env.OUTPUT_PATH);

    const n = parseInt(readLine().trim(), 10);

    let orders = Array(n);

    for (let i = 0; i < n; i++) {
        orders[i] = readLine().replace(/\s+$/g, '').split(' ').map(ordersTemp => parseInt(ordersTemp, 10));
    }

    const result = jimOrders(orders);

    ws.write(result.join(' ') + '\n');

    ws.end();
}