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Question Statement

There are several cards arranged in a row, and each card has an associated number of points

The points are given in the integer array cardPoints.

In one step, you can take one card from the beginning or from the end of the row. You have to take exactly k cards.

Your score is the sum of the points of the cards you have taken.

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Lowest Common Ancestor in a Binary Tree

How can you find the lowest common ancestor of 2 given nodes in a binary tree data structure.

Node:

• val: int
• right: Node
• left: Node

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Create a data structure that will implement the below interface.

Plan { planId: string; planType: string; planYear: int; planName: string; }

addPlan(Plan plan)

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import React from 'react';
import logo from './logo.svg';
import './App.css';
import { InMemoryCache } from 'apollo-cache-inmemory'
import { createUploadLink } from 'apollo-upload-client'
import {ApolloClient} from "apollo-client"
import {ApolloProvider, Mutation} from "react-apollo"
import gql from "graphql-tag"

const apolloCache = new InMemoryCache()

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const UPLOAD_FILE = gql`
  mutation SingleUpload($file: Upload!) {
    singleUpload(file: $file) {
      filename
      mimetype
      encoding
    }
  }
`;

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const apolloCache = new InMemoryCache()

const uploadLink = createUploadLink({
  uri: 'http://localhost:4000', // Apollo Server is served from port 4000
  headers: {
    "keep-alive": "true"
  }
})

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const { ApolloServer, gql } = require('apollo-server');
const AWS = require('aws-sdk')
const fs = require('fs')

AWS.config.loadFromPath('./credentials.json');

const s3 = new AWS.S3({apiVersion: '2006-03-01'});

const typeDefs = gql`  
  type File {

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const resolvers = {
  Mutation: {
    singleUpload: (parent, args) => {
      return args.file.then(file => {
        const {createReadStream, filename, mimetype} = file

        const fileStream = createReadStream()

        fileStream.pipe(fs.createWriteStream(`./uploadedFiles/${filename}`))

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const typeDefs = gql`  
  type File {
    filename: String!
    mimetype: String!
    encoding: String!
  }
  
  type Query {