latihan C++(array,Structure)

Soal 1,

ARRAY  DATA MAHASISWA

#include<stdio.h>

#include"conio.h"

#include"iostream.h"

#include"iomanip.h"

main()

{

int a,n;

char nama[5][20],nim[5][8];

char kelas[5][6],grade[5],ket[5][6];

int uts[5],uas[5],rata[5];

clrscr();

cout<<"Jumlah Data ? ";cin>>n;

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

{

clrscr();

cout<<"Data Ke: "<<a<<endl;

cout<<"Nama: ";gets(nama[a]);

cout<<"Kelas: ";cin>>kelas[a];

cout<<"Nim: ";cin>>nim[a];

cout<<"Nilai UTS: ";cin>>uts[a];

cout<<"Nilai UAS: ";cin>>uas[a];

rata[a]=(uts[a]+uas[a])/2;

if(rata[a]>=80)

{

grade[a]='A';

strcpy(ket[a],"LULUS");

}

else if(rata[a]>=70)

{

grade[a]='B';

strcpy(ket[a],"LULUS");

}

else if(rata[a]>=60)

{

grade[a]='C';

strcpy(ket[a],"LULUS");

}

else if(rata[a]>=50)

{

grade[a]='D';

strcpy(ket[a],"GAGAL");

}

else

{

grade[a]='E';

strcpy(ket[a],"GAGAL");

}

cout<<endl;

}

clrscr();

cout<<"Daftar Nilai Mahasiswa"<<endl;

cout<<"----------------------------------------------------------------------"<<endl;

cout<<"No Nama      Nim          Kelas      Nilai Nilai Rata Grade Keterangan"<<endl;

cout<<"                                     UTS   UAS   Rata"<<endl;

cout<<"----------------------------------------------------------------------"<<endl;

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

{

cout<<setiosflags(ios::left)<<setw(3)<<a;

cout<<setiosflags(ios::left)<<setw(10)<<nama[a];

cout<<setiosflags(ios::left)<<setw(13)<<nim[a];

cout<<setiosflags(ios::left)<<setw(11)<<kelas[a];

cout<<setiosflags(ios::left)<<setw(6)<<uts[a];

cout<<setiosflags(ios::left)<<setw(6)<<uas[a];

cout<<setiosflags(ios::left)<<setw(5)<<rata[a];

cout<<setiosflags(ios::left)<<setw(6)<<grade[a];

cout<<setiosflags(ios::left)<<setw(10)<<ket[a]<<endl;

}

cout<<"----------------------------------------------------------------------"<<endl;

getch();

}

Soal 2,

ARRAY  DIMENSI SATU

#include<conio.h>

#include<stdio.h>

#include<iostream.h>

#include<iomanip.h>

main()

{

int i;

char nama[5][20];

float nilai1[5];

float nilai2[5];

float hasil[5];

clrscr();

for(i=1;i<=2;i++)

{

cout<<"Data ke- "<<i<<endl;

cout<<"Nama Siswa    : ";gets(nama[i]);

cout<<"Nilai Teori   : ";cin>>nilai1[i];

cout<<"Nilai Praktek : ";cin>>nilai2[i];

hasil[i]=(nilai1[i]*0.40)+(nilai2[i]*0.60);

cout<<endl;

}

clrscr();

cout<<endl<<endl;

cout<<"------------------------------------"<<endl;

cout<<"No. Nama Siswa Nilai Nilai   Hasil "<<endl;

cout<<"               Teori Praktek Ujian "<<endl;

cout<<"------------------------------------"<<endl;

for(i=1;i<=2;i++)

{

cout<<setiosflags(ios::left)<<setw(4)<<i;

cout<<setiosflags(ios::left)<<setw(10)<<nama[i];

cout<<setprecision(2)<<" "<<nilai1[i];

cout<<setprecision(2)<<"    "<<nilai2[i];

cout<<setprecision(2)<<"      "<<hasil[i]<<endl;

}

getch();

}

Soal 3,

CLASS  DATA

#include<stdio.h>

#include<conio.h>

#include<iostream.h>

#include<iomanip.h>

class data

{

public:

char nim[12],nama[25];

int nilai;

};

main()

{

int i,j;

data siswa[6];

cout<<"Masukkan Jumlah Data = ";cin>>j;

clrscr();

for(i=1;i<=j;i++)

{

cout<<"Data Ke - "<<i<<endl;

cout<<"Masukkan Nama Mahasiswa = ";gets(siswa[i].nama);

cout<<"Masukkan Nim Mahasiswa  = ";cin>>siswa[i].nim;

cout<<"Masukkan Nilai Akhir    = ";cin>>siswa[i].nilai;

}

cout<<endl;

cout<<"=============================================="<<endl;

cout<<"No  Nama           Nim         Nilai"<<endl;

cout<<"=============================================="<<endl;

for(i=1;i<=j;i++)

{

cout<<setiosflags(ios::left)<<setw(4)<<i;

cout<<setiosflags(ios::left)<<setw(15)<<siswa[i].nama;

cout<<setiosflags(ios::left)<<setw(12)<<siswa[i].nim;

cout<<setiosflags(ios::left)<<setw(5)<<siswa[i].nilai<<endl;

}

getch();

}

MATRIX

#include<iostream.h>

#include<conio.h>

#include<conio.h>

main()

{

 int kol_a,kol_b,bar_a,bar_b,i,j;

 int a[50][50],b[50][50],c[50][50];

 clrscr();

cout<<"MATRIKS A : "<<endl;

  cout<<"Masukkan Jumlah Baris Matriks A : ";cin>>bar_a;

  cout<<"Masukkan Jumlah Kolom Matriks A : ";cin>>kol_a;

  cout<<endl;

  cout<<"MATRIKS B : "<<endl;

  cout<<"Masukkan Jumlah Baris Matriks B : ";cin>>bar_b;

  cout<<"Masukkan Jumlah Kolom Matriks B : ";cin>>kol_b;

 cout<<endl;

 cout<<"Masukkan Nilai Matriks A : "<<endl;

 for(i=1;i<=bar_a;i++)

 {

  for(j=1;j<=kol_a;j++)

  {

   cout<<"A["<<i<<","<<j<<"] = ";cin>>a[i][j];

  }

 }

cout<<endl;

cout<<"Masukkan Nilai Matriks B : "<<endl;

 for(i=1;i<=bar_b;i++)

 {

  for(j=1;j<=kol_b;j++)

  {

   cout<<"B["<<i<<","<<j<<"] = ";cin>>b[i][j];

  }

 }

 cout<<endl<<endl;

 for(i=1;i<=bar_a;i++)

 {

  for(j=1;j<=kol_a;j++)

  {

   c[i][j] = a[i][j] + b[i][j];

  }

 }

 cout<<endl<<endl;

 gotoxy(1,24);

 cout<<"A = ";

 for(i=1;i<=bar_a;i++)

 {

  for(j=1;j<=kol_a;j++)

  {

   gotoxy(3+22*j,22+22*i);

   cout<<a[i][j];

  }

 }

 gotoxy(1,32);

 cout<<"B = ";

 for(i=1;i<=bar_b;i++)

 {

  for(j=1;j<=kol_b;j++)

  {

   gotoxy(3+23*j,30+20*i);

   cout<<b[i][j];

  }

 }

 gotoxy(1,40);

 cout<<"C = ";

 for(i=1;i<=bar_a;i++)

 {

  for(j=1;j<=kol_a;j++)

  {

   gotoxy(3+23*j,37+20*i);

   cout<<a[i][j];

  }

 }

 gotoxy(16,40);

 cout<<" + ";

 for(i=1;i<=bar_b;i++)

 {

  for(j=1;j<=kol_b;j++)

  {

   gotoxy(20+23*j,16+20*i);

   cout<<b[i][j];

  }

 }

 gotoxy(32,40);

 cout<<" = ";

 for(i=1;i<=bar_a;i++)

 {

  for(j=1;j<=kol_a;j++)

  {

   gotoxy(33+23*j,16+20*i);

   cout<<c[i][j];

  }

 }

 getch();

 }

Soal 3,

CRUISE

#include <iostream.h>

#include <conio.h>

#include <stdio.h>

#include <iomanip.h>

main()

{

int i,data,jumbel[5];

char nama[20],lg ;

char napem[20],kode[5],buku[5][20];

long int harga[5],total[5],totalbayar,kembali,bayar;

cruise:

clrscr();

totalbayar=0;

cout<<"...... cruiseamir ......"<<endl;

cout<<"=========="<<endl;

cout<<"nama kasir \t:";gets(nama);

cout<<"nama pembeli \t:";gets(napem);

cout<<"\nbanyak data \t:";cin>>data;

cout<<"=========="<<endl;

for(i=1;i<=data;i++)

{

cout<<"data ke - "<<i<<endl;

cout<<"kode buku [k|m|n] \t:";cin>>kode[i];

if (kode[i]=='k'||kode[i]=='K')

{

strcpy(buku[i],"komik");

harga[i]=5000;

}

else if (kode[i]=='m'||kode[i]=='M')

{

strcpy(buku[i],"majalah");

harga[i]=15000;

}

else if (kode[i]=='n'||kode[i]=='N')

{

strcpy(buku[i],"novel");

harga[i]=25000;

}

cout<<"nama buku \t:"<<buku[i]<<endl;

cout<<"harga buku \t:"<<harga[i]<<endl;

cout<<"jumlah beli \t:";cin>>jumbel[i];cout<<endl;

total[i]=harga[i]*jumbel[i];

}

clrscr();

cout<<"Nama Pembeli : "<<napem<<endl;

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

cout<<"no kode buku nama buku jumlah beli harga total\n";

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

for(i=1;i<=data;i++)

{

cout<<setiosflags(ios::left)<<setw(8)<<i;

cout<<setiosflags(ios::left)<<setw(11)<<kode[i];

cout<<setiosflags(ios::left)<<setw(8)<<buku[i];

cout<<" "<<jumbel[i];

cout<<" "<<harga[i];

cout<<" "<<total[i]<<endl;

totalbayar+=total[i];

}

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

cout<<"\t\t\t total bayar = Rp. "<<totalbayar<<endl;

cout<<"\t\t\t uang bayar = Rp. ";cin>>bayar;

kembali=bayar-totalbayar;

cout<<"\t\t\t kembalian = Rp. "<<kembali<<endl;

cout<<" ingin input data [Y/T] : ";cin>>lg;

if(lg=='Y'||lg=='y')

goto cruise;

}

 Soal 4,

FUNGSI SEGITIGA

#include <conio.h>

#include <iostream.h>

luas(float alas,float tinggi);

main()

{

float luas_segitiga,a,t;

clrscr();

cout<<"\nMenghitung Luas Segitiga"<<endl;

cout<<"\nMasukan Alas: ";cin>>a;

cout<<"\nMasukkan Tinggi: ";cin>>t;

luas_segitiga=luas(a,t);

cout<<"\nLuas Segitiga= "<<luas_segitiga<<" cm";

getch();

}

luas(float alas, float tinggi)

{

return(alas*tinggi/2);

}

Soal 5,

STRUCT ARRAY

#include<iostream.h>

#include<iomanip.h>

#include<stdio.h>

#include<conio.h>

main()

{

struct

{

char jenis[10];

int kode;

float lama,harga,pajak,total;

}penyewaan[6];

int i,j;

char nama[25],tgl[10];

float totalbiaya=0,diskon=0,totalbayar=0;

clrscr();

cout<<"Jumlah sewa  = ";cin>>j;

cout<<"Nama Sewa    = ";cin>>nama;

cout<<"Tanggal Sewa = ";cin>>tgl;

clrscr();

for(i=1;i<=j;i++)

{

cout<<"Data Penyewa Ke - "<<i<<endl;

cout<<"Kode Mobil = ";cin>>penyewaan[i].kode;

cout<<"Jenis Mobil= ";cin>>penyewaan[i].jenis;

cout<<"Lama Sewa  = ";cin>>penyewaan[i].lama;

cout<<"Harga Sewa = ";cin>>penyewaan[i].harga;

cout<<endl;

if(penyewaan[i].kode=='1')

   penyewaan[i].pajak=150000;

else

   penyewaan[i].pajak=100000;

penyewaan[i].total=(penyewaan[i].lama*penyewaan[i].harga)+penyewaan[i].pajak;

totalbiaya+=penyewaan[i].total;

diskon=0.1*totalbiaya;

totalbayar=totalbiaya-diskon;

}

clrscr();

cout<<"                    DAFTAR PENYEWA MOBIL"<<endl;

cout<<"                 PT. SAFETY TRANSPORTATION"<<endl;

cout<<"=============================================================="<<endl;

cout<<"No Kode   Jenis     Lama  Harga     Pajak    Total"<<endl;

cout<<"   Mobil  Mobil     Sewa  Sewa"<<endl;

cout<<"=============================================================="<<endl;

for(i=1;i<=j;i++)

{

printf("%d %8s %8s %8.0f %8.0f %8.0f %8.0f",

i,penyewaan[i].kode,penyewaan[i].jenis,penyewaan[i].lama,

penyewaan[i].harga,penyewaan[i].pajak,penyewaan[i].total);

cout<<endl;

}

cout<<"=============================================================="<<endl;

printf("Total Biaya Sewa= Rp. %0.0f",totalbiaya);cout<<endl;

printf("Diskon= Rp. %0.0f",diskon);cout<<endl;

printf("Total Pembayaran= Rp. %0.0f",totalbayar);cout<<endl;

}