#include<iostream.h>
#include<conio.h>

void main(){
  int angka, i, j;

   cout << "Masukkan angka : ";cin >> angka;
   cout << endl;

   for(i = 1;i <= angka;i++){
      for(j = 1;j <= i; j++){
          if(j%2 == 0)
              cout << j << "B ";
          else
          cout << j << "A ";               
      }
      cout << endl;                              
   }

   getch();                          

}

#include<iostream.h>
#include<conio.h>

void main(){
  int angka;

   cout << "Masukkan angka : ";cin >> angka;

   if(angka%2 == 0){
      cout << "Angka " << angka << " habis dibagi 2" << endl;
      cout << "Jadi angka adalah angka genap";
   }else{
      cout << "Angka " << angka << " tidak habis dibagi 2" << endl;
      cout << "Jadi angka adalah angka ganjil";
   }

   getch();

}

#include <iostream.h>
#include <conio.h>
#include <ctype.h>

void main(){
  char pil;

   cout << "Menu Makan Siang" << endl;
   cout << "--------------------------------" << endl;
   cout << "A. Pizza         C. Nasi Goreng" << endl;
   cout << "B. Siomay        D. Nasi Gila" << endl;
   cout << "Masukkan Kode Menu Makan Siang Anda [A . . D] : ";cin >> pil;
   cout << endl;

   switch(toupper(pil)){
    case 'A':
          cout << "Pizza" << endl;
      break;
      case 'B':
          cout << "Siomay" << endl;
      break;
      case 'C':
          cout << "Nasi Goreng" << endl;
      break;
      case 'D':
          cout << "Nasi Gila" << endl;
      break;
      default:
          cout << "Pilihan Anda Salah" << endl;
      break;
   }

   getch();
                             

}