using System;

using System.Collections.Generic;

using System.Globalization;

using System.Linq;

​

class rek

{

    public List<int> var = new List<int>();

    public List<string> nama = new List<string>();

    public void tambahnama(string a)

    {

        nama.Add(a);

    }

​

    public void saldo(int b)

    {

        var.Add(b);

    }

    public void setor(int c, int d)

    {

        var[c] += d;

    }

    public void tarik(int c, int d)

    {

        var[c] -= d;

    }

    public void printsaldo(string b)

    {

        for (int i = 0; i < nama.Count; i++)

        {

            Console.WriteLine("[R" + (i+1) + "]" + nama[i]);

        }

​

    }

    public string ceksaldo(int a) 

    {

        string b = a.ToString("C", CultureInfo.CreateSpecificCulture("id-ID"));

        return b;

    }

​

}

​

public class Program

{

    public static void Main()

    {

        int daftar = 0;

        int lom = 1;

        rek cek = new rek();

        do

        {

            Console.Write("[N] Tambah rekening\n[X] Exit\n\nDaftar Rekening: \n");

            if (daftar == 0)

            {

                Console.WriteLine("Belum ada rekening");

            }

            else if (daftar >= 1)

            {

                cek.printsaldo("ada");

            }

            Console.WriteLine("Pilih: ");

            string pilih = Console.ReadLine();

            if (pilih.Contains('N'))

            {

                Console.WriteLine("Nama Rekening: ");

                cek.tambahnama(Console.ReadLine());

                cek.saldo(0);

                daftar++;

                lom++;

            }

            if (pilih.Contains('X'))

            {

                break;

            }

            else

            {

                string x = pilih.Substring(0, 1);

                string y = pilih.Substring(1);

                bool allCharactersInStringAreDigits = y.All(char.IsDigit);

                if (x != "R" || pilih.Length == 1 || allCharactersInStringAreDigits == false)

                {

                    Console.WriteLine("\nInvalid Input\n");

                }

                else

                {

                    int a = Convert.ToInt32(y);

                    if (a < 1 || a > lom - 1) // R0 SAMPAI R LEBIH DR INDEKS

                    {

                        Console.WriteLine("\nInvalid Input\n");

                        break;

                    }

​

                    string pilah = "";

                    Console.Clear();

                    do

                    {

                        Console.WriteLine("Rekening " + cek.nama[a - 1]);

                        Console.WriteLine("Saldo : " + cek.ceksaldo(cek.var[a - 1]));

                        Console.WriteLine("[S] Setor\n[T] Tarik\n[R] Return\n \nPilih : ");

                        pilah = Console.ReadLine();

                        switch (pilah)

                        {

                            case "S":

                                Console.WriteLine("\nMasukkan Nominal Setor :");

                                int setor = Convert.ToInt32(Console.ReadLine());

                                cek.setor(a - 1, setor);

                                Console.WriteLine("berhasil setor " + cek.ceksaldo(setor));

                                Console.ReadKey();

                                Console.Clear();

                                break;

                            case "T":

                                Console.WriteLine("\nMasukkan Nominal Tarik:");

                                int tarik = Convert.ToInt32(Console.ReadLine());

                                if (tarik > cek.var[a - 1])

                                {

                                    Console.WriteLine("Penarikan " + cek.ceksaldo(tarik) + " gagal. Saldo Tidak Cukup.");

                                    Console.ReadKey();

                                    Console.Clear();

                                }

                                else

                                {

                                    cek.tarik(a - 1, tarik);

                                    Console.WriteLine("Penarikan " + cek.ceksaldo(tarik) + " berhasil!");

                                    Console.ReadKey();

                                    Console.Clear();

                                }

                                break;

                            default:

                                Console.WriteLine("Invalid Input");

                                break;

                        }

                    }

                    while (pilah != "R");

                    Console.Clear();

                }

            }

        }

        while (true);

    }

}