Latihan Pemrograman C (1)

/* Program membalik Array */

#include <stdio.h>

int main ()

{

                int data[] = {2, 2, 7, 9, 3, 1};

                int i;

                for (i = 5; i > 0; i--)

                printf("%d", data[i]);

                                printf("\n");

                return 0;

}

//Menjumlahkan Matriks

#include <stdio.h>

#include <conio.h>

main()

{

                                int a[4]={3,7,4,6};

                                int b[4]={8,0,5,2};

                                int c[4],i;

                                for (i=0;i<4;i++) printf("a[%d]= %d\n",i+1,a[i]);

                                printf("\n\n");

                                for (i=0;i<4;i++) printf("a[%d]= %d\n",i+1,b[i]);

                                printf("\n\n");

                                printf("  A   +    B  =    C\n\n");

                                for (i=0;i<4;i++)

                                {

                                                 c[i]=a[i]+b[i];

                                                 if (i==1) printf("|%3d| + |%3d| = |%3d|\n",a[i],b[i],c[i]);

                                                 else printf("|%3d|   |%3d|   |%3d|\n",a[i],b[i],c[i]);

                                }

                                getch();

}

//Menjumlahkan Matriks A + Matriks B hasilnya Matriks C

#include <stdio.h>

main()

{

  int i,j;

  int A[4][3],B[4][3],C[4][3]; /* deklarasi array */

  /* Membaca A data dari keyboard */

  printf("\tMasukkan matriks A : \n");

  for (i=0;i<4;i++)

                 {

                  for(j=0;j<3;j++)

                                 {

                                  printf("\t\tA(%d,%d): ",i,j);

                                  scanf("%d", &A[i][j]);

                                 }

                 }

  printf("\n\tMasukkan matriks B : \n");

  for (i=0;i<4;i++)

                 {

                  for(j=0;j<3;j++)

                                 {

                                  printf("\t\tB(%d,%d): ",i,j);

                                  scanf("%d", &B[i][j]);

                                 }

                 }

                for (i=0;i<4;i++)

                 {

                  for(j=0;j<3;j++)

                                                C[i][j]=B[i][j]+A[i][j];

                 }

printf("\n\n");

/* Menampilkan data matriks yang telah dimasukkan */

printf("\n   Matriks A    +      Matriks B   =                 Matriks C\n");

for (i=0;i<4;i++)

  {

                 for(j=0;j<3;j++)

                                  printf("%4d",A[i][j]);

                 printf("        ");

                 for(j=0;j<3;j++)

                                  printf("%4d",B[i][j]);

                 printf("        ");

                 for(j=0;j<3;j++)

                                  printf("%4d",C[i][j]);

                 printf("\n");

}

}

/* Program membalik Array */

#include <stdio.h>

int main ()

{

int data[] = {3, 1, 7, 9, 2};

int tmp;

int i;

for (i = 0; i < 4; i +=2)

{

tmp = data [i];

data[i] = data[i+1];

data [i+1] = tmp;

}

/* Tampilkan isi Larik*/

for (i = 0; i < 5; i++)

printf("%d", data[i]);

printf("\n");

return 0;

}

/* ------------------------------------------------ */

/* File program : baca.c */

/* Contoh pengaksesan array satu dimensi */

/* ------------------------------------------------ */

#include <stdio.h>

#define maks_tes 5

main()

{

int i;

float nilai_tes[maks_tes]; /* deklarasi array */

/* Membaca data dari keyboard */

for (i=0;i<maks_tes;i++)

{

printf("Nilai tes ke-%d: ",i+1);

scanf("%f", &nilai_tes[i]);

}

/* Menampilkan data yang telah dimasukkan */

for (i=0;i<maks_tes;i++)

{

printf("Nilai tes ke-%d: %4.2f\n",i+1,nilai_tes[i]);

}

}

/* ------------------------------------------------ */

/* File program : baca2.c */

/* Contoh pengaksesan array dua dimensi */

/* ------------------------------------------------ */

#include <stdio.h>

main()

{

int i,j;

int matriks[4][3]; /* deklarasi array */

/* Membaca data dari keyboard */

for (i=0;i<4;i++)

{

for(j=0;j<3;j++)

{

printf("matriks (%d, %d): ",i,j);

scanf("%d", &matriks[i][j]);

}

}

printf("\n\n");

/* Menampilkan data matriks yang telah dimasukkan */

for (i=0;i<4;i++)

{

for(j=0;j<3;j++)

{

printf(" Matriks(%d, %d): %d",i,j,matriks[i][j]);

}

printf("\n");

}

}

/***************************************************

*  TUGAS PEMROGRAMAN   *

*  ----------------------------------------------  *

*    Tugas  : Mencari Rerata Semua Bilangan    *

***************************************************/

#include <stdio.h>

#define max 5

int main()

{

                float A[max], jumlah=0, rata_rata;

                int j;

                /*Memasukkan nilai ke dalam elemen array*/

                printf("Memasukkan Nilai :\n\n");

                for (j=0; j<max; j++)

                {

                                printf("Nilai Ke-%d = ",j+1);

                                scanf("%f", &A[j]);

                                jumlah += A[j];

                }

                /*Melakukan proses perhitungan rata-rata*/

                rata_rata = jumlah/max;

                /*Menampilkan hasil perhitungan*/

                printf("\nNilai Rata-Rata = %.2f", rata_rata);

                return 0;

}

/*Cari Nilai Yang Terbesar*/

#include <stdio.h>

#define max 5

main()

{

                int i, besar;

                int A[max];   /*deklarasi array*/

                /*Membaca data dari keyboard*/

                for (i=0; i<max; i++)

                {

                                printf("Nilai Ke-%d : ",i+1);

                                scanf("%d", &A[i]);

                }

                /*Menampilkan nilai terbesar*/

                besar = A[0];

                for (i=1; i<max; i++)

                if (besar<A[i])

                                besar = A[i];

                printf("\n\nNilai Terbesar  = %d", besar);

}