Jackyjjc

#include<stdio.h>

int main(int argc, char** argv) {

   int n, c;
   int retVal;
   if((retVal = scanf("%d %d", &n, &c)) != 2) {
       printf("only scan in %d items\n", retVal);
       return 1;
   }

Jackyjjc

    //on the backend object you can call
    void createUser(String userName);
    void createRoom(User user, LatLng latLng, int accuracy, String roomName, int roomRadius);
    void listRooms(User user, LatLng latLng, int accuracy);
    void sendMessage(User user, Room room, String message);
    
    //need to implement these to get information from the backend
    @Override
    public void onConnected() {
    }

Jackyjjc

/*Add these to MainActivity on create*/

final DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
final ListView drawerList = (ListView) drawerLayout.findViewById(R.id.list_drawer);
drawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, new String[]{"Rooms"}));
drawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int pos, long id) {
        
        /*you need to write this function, depends on what you want it to do when you click an item on the drawer*/

Jackyjjc

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.ScreenAdapter;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.scenes.scene2d.InputEvent;
import com.badlogic.gdx.scenes.scene2d.InputListener;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.List;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.ui.Table;

Jackyjjc

import java.util.*

fun main(args : Array<String>) {
    val numBalances = readLine()!!.toInt()
    val balances = (1 .. numBalances).map {
        val leftLine = readLine()!!.split(' ')
        val rightLine = readLine()!!.split(' ')

        Balance(leftLine[0].toInt(), if (leftLine.size == 2) leftLine[1].toInt() else -1,
                rightLine[0].toInt(), if (rightLine.size == 2) rightLine[1].toInt() else -1)