TugasTambahanModulII

#include<iostream>
#include<conio.h>
#include<stdlib.h>
#include<stdio.h>
#include<math.h>

using namespace std;
int y,n;
char in;
bool state=true;

int main()
{
    while(state){
    int pilih;
    int x,y,i,j,k;
    int a=0,b=1,c;

    cout << "\tPilih Program : " << endl;
    cout << "========================================" << endl;
    cout << "1. Bilangan Fibonacci"<<endl;
    cout << "2. Persegi"<<endl;
    cout << "3. Number To Text"<<endl;
    cout << "========================================" << endl;
    cout << "Masukkan pilihan anda = ";
    cin >> pilih;
    cout << "\n";

    cout << endl;
    switch(pilih){
    case 1 :

    cout<<" X = ";
    cin>>x;
    cout<<" Y = ";
    cin>>y;

    for(i=0; i<=y-1; i++){
        for(j=0; j<=((2*y)-(2*i)); j++){
            cout<< " " ;}
        for(k=0; k<=i; k++)
        {
            c=a+b; b=a; a=c;
            if(i>=x-1)
            {
                cout<<" ";
                cout<<" "<<c%10;
                cout<<" ";
            }
        }
        cout<<endl;
       } break;
    case 2 : //kotak responsif
    cout << "Masukkan angka yang diindingkan = ";
    cin>>x;
        for(int n=1; n<=x+3; n++){
            cout<<"#";
        }
        cout<<endl;
        for(int y=1;y<=x;y++){
                for(i=1;i<=1;i++){
                    cout<<"#";
                }
                for(int j=1; j<=(x+1); j++ ){
                    cout<<"-";
                }
                for(i=1;i<=1;i++){
                    cout<<"#";
                }
                   cout<<endl;
        }
            for(int n=1; n<=x+3; n++){
            cout<<"#";
        } break;
    case 3 : string nilai;
    cout << "Input : ";
    cin >> nilai;
    for( i = 0; i <= nilai.length(); i++)
    {

        switch(nilai[i])
        {
        case '1' :
            cout << "Satu ";
            break;
        case '2' :
            cout << "Dua ";
            break;
        case '3' :
            cout << "Tiga ";
            break;
        case '4' :
            cout << "Empat ";
            break;
        case '5' :
            cout << "Lima ";
            break;
        case '6' :
            cout << "Enam ";
            break;
        case '7' :
            cout << "Tujuh ";
            break;
        case '8' :
            cout << "Delapan ";
            break;
        case '9' :
            cout << "Sembilan ";
            break;
        case '0' :
            cout << "Nol ";
            break;
        default:
            break;
        }
    }break;
    }
    cout << "\n\n" << "Ulang lagi ?(y/n) -> "; cin >> in;
            if(in == 'n' || in=='N'){
            cout << "Terima Kasih :)" << endl;
            state = false;}
            else if(in == 'y' || in=='Y'){
            cout << "\nOk ulang lagi\n" << endl;
            state = true;}
    }
}