MODUL IX
LARIK
MULTI DIMENSI
A. TUJUAN
1.
Mengenal tipe
data terstruktur menggunakan larik multi dimensi
2.
Memahami
penggunaan larik multi dimensi
3.
Mampu
mengimplementasikan permasalahan dengan larik multi dimensi
B. DASAR
TEORI
Pada modul sebelumnya, anda telah mempelajari
larik 1 dimensi, yaitu hanya memiliki 1 index saja. Pada modul ini akan
mempelajari larik multi dimensi, yang memiliki lebih dari 1 index. Larik multi
dimensi yang akan dipelajari adalah
larik 2 dimensi.
Larik 2 dimensi ini biasa digunakan
untuk menyelesaikan persoalan tentang matrik. Instruksi yang digunakan biasanya
adalah instruksi perulangan dengan FOR ... TO ... DO ... berganda. Berikut ini
gambaran larik 2 dimensi :
|
Data
[1,1]
|
Data
[1,2]
|
........
|
Data
[1,n-1]
|
Data
[1,n]
|
||
|
Data
[2,1]
|
Data
[2,2]
|
........
|
Data
[2,n-1]
|
Data
[2,n]
|
||
|
........
|
........
|
........
|
........
|
........
|
||
|
Data
[m-1,1]
|
Data
[m-1,2]
|
........
|
Data
[m-1,n-1]
|
Data
[m-1,n]
|
||
|
Data
[m,1]
|
Data
[m,2]
|
........
|
Data
[m, n-1]
|
Data
[m,n]
|
1 2 ........ n-1 n
Perhatikan baik-baik gambar di atas. Index pada
larik dua dimensi merupakan index dari baris dan index dari kolom. Jika
index-nya adalah [m,n], maka m melambangkan nomor baris dan n melambangkan
nomor kolom. Bentuk umum dari larik 2 dimensi adalah :
TYPE
nama_larik =
array[aw_brs..ak_brs, aw_klm..ak_klm] of tipe_data;
VAR
nama_variabel :
nama_lari;
C. LATIHAN
SOAL
- Nomor Program : -
Perhatikan statement program berikut, kemudian
isiah tabel 2 dimensi yang diberikan!
larik[1,1]:=10; larik[1,2]:=2;
larik[1,3]:=6; larik[1,4]:=33;
larik[2,1]:=17; larik[2,2]:=5;
larik[2,3]:=26; larik[2,4]:=9;
larik[3,1]:=11; larik[3,2]:=-4;
larik[3,3]:=31; larik[3,4]:=18;
|
1
|
|
|
|
|
|
2
|
|
|
|
|
|
3
|
|
|
|
|
1 2 3 4
- Nomor Program 0901
a.
Tulislah
program berikut dan amatilah outputnya!
PROGRAM matriks3x4;
USES CRT;
TYPE
matriks =
array[1..3, 1..4] of integer;
VAR
larik : matriks;
i, j : integer;
BEGIN
CLRSCR;
larik[1,1]:=10; larik[1,2]:=2;
larik[1,3]:=6; larik[1,4]:=33;
larik[2,1]:=17; larik[2,2]:=5;
larik[2,3]:=26; larik[2,4]:=9;
larik[3,1]:=11; larik[3,2]:=-4;
larik[3,3]:=31; larik[3,4]:=18;
FOR i := 1 to 3
DO
BEGIN
WRITELN(‘Baris
ke- ‘,i:5);
FOR j := 1 TO 4
DO WRITE(larik[i,j]:5); WRITELN;
END;
READLN;
END.
b.
Modifikasilah
program di atas agar matriks yang ditampilkan adalah isi matriks yang sudah
dikalikan dengan 3.
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
..................................................................................................................
- Nomor Program 0902
Buatlah dua buah matriks dengan ordo yang
sama, yaitu 3x2. Isilah dengan nilai
integer. Tulislah program untuk menjulahkan dua buah matriks tersebut dan
tampilkan hasilnya!
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
- Nomor Program 0903
Buatlah dua buah matriks dengan ordo yang sama,
yaitu 2x4. Isilah dengan nilai integer. Tulislah program untuk mengurangkan dua
buah matrik tersebut dan tampilkan hasilnya!
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
- Nomor Program 0904
Buatlah dua buah matriks yang masing-masing
berordo 3x2 dan 3x2. Isilah dengan nilai integer. Tulislah program untuk
mengalikan dua buah matriks tersebut. Apabila anda sudah memahami cara
mengalikan matriks, anda bisa langsung mengerjakan program ini!
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
Nomor Program 0905
Tulislah program berikut dan amatilah outputnya!
PROGRAM
data_nilai;
USES
CRT;
TYPE
larik1 = array[1..10] of string;
larik2 = array[1..10,1..3] of real;
VAR
nama : larik1;
nilai : larik2;
total : real;
jml_mhs, i, j : integer;
BEGIN
CLRSCR;
WRITE(‘Berapa jumlah mahasiswa(max 10 orang)?
’);
READLN(jml_mhs);
FOR i := 1 DO jml_mhs DO
BEGIN
CLRSCR;
WRITE(‘Nama mahasiswa : ‘);
READLN(nama[i]);
FOR j := 1 TO 3 DO
BEGIN
WRITE(‘Masukkan nilai ke- ‘,j,‘ ‘);
READLN(nilai[i,j]);
END;
END;
CLRSCR;
WRITELN(‘Data-Data Mahasiswa’);
FOR i := 1 TO jml_mhs DO
BEGIN
WRITELN(nama[i]);
FOR j := 1 TO 3 DO
WRITE(nilai[i,j],‘ ‘);
WRITELN;
END;
READLN;
END.
- Nomor Program 0906
Setiap kelas pada praktikum pemrograman 1 terdiri
dari 15 orang mahasiswa. Nilai akhir dari tiap-tiap mahasiswa ditentukan oleh 3
buah tes, yaitu tes tertulis pada pertengahan praktikum, nilai ujian tengah semester
untuk praktek, dan nilai ujian akhir untuk praktek. Dari ketiga nilai tersebut
akan dicari rata-ratanya. Jika nilainya lebih besar atau sama dengan 60, maka
mahasiswa tersebut dinyatakan lulus. Tetapi jika nilai rata-ratanya lebih kecil
dari 60, maka dinyatakan tidak lulus. Buatlah program yang akan menampung
data-data mahasiswa tersebut, kemudian setelah data-datanya anda inputkan,
tentukan berapa orang mahasiswa yang lulus dan tidak lulus serta tampilkan
output data-data mahasiswa lengkap secara lengkap!
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
Tidak ada komentar:
Posting Komentar