Program Paket Menghitung Deret

#include<iostream.h>

#include<conio.h>

void deret(){

int a, b, c;

clrscr();

cout<<"Masukkan nilai deret ";cin>>a;

for (b=1 ; b<=a; b++)

{

for (c=1  ; c<=b; c++)

{

cout<<"*";

}

cout<<" "<<endl;

}

for (b=1 ; b<=a; b++)

{

for (c=a-1 ; c>=b; --c)

{

cout<<"*";

}

cout<<" "<<endl;

}

getch();

}

void kelas(){

clrscr();

char nama [20][10];

char npm [8][10];

char kelas[5][10];

int jml;

cout<<"masukkan jumlah record:";

cin>>jml;

clrscr();

for (int i=1 ; i<=jml ;i++)

{

cout<<"\n input data ke-"<<i<<":";

cin>>nama[i];

cout<<"\n npm ke-"<<i<<":";

cin>>npm[i];

cout<<"\n kelas ke-"<<i<<":";

cin>>kelas[i];

}

for (int j=1; j<=jml;j++)

{

cout<<"\n==========================\n";

cout<<"\n input data ke-"<<j;

cout<<"\n nama  :  "  << nama[j];

cout<<"\n npm   :  "  << npm[j];

cout<<"\n kelas :  "  <<kelas[j];

cout<<"\n==========================\n";

}

getch();

}

void main(){

clrscr();

int pil;

start :

clrscr();

cout<<"             Menu\n";

cout<<"============================\n";

cout<<"1. Deret\n";

cout<<"2. Kelas\n";

cout<<"3. Exit\n\n";

cout<<"============================\n";

cout<<"Masukkan Pilihan Anda :";cin>>pil;

switch(pil){

 case 1:

  deret();

goto start;

  case 2:

kelas();

goto start;

  case 3:

 cout<<"\n\nProgram Selesai. Terima Kasih";

 goto exit;

break;

default :

 cout<<"\n\nMaaf, Pilihan Tidak Tersedia !!!";

goto start;

}

 exit:

 getch();

 }