Tugas Algoritma 3 (Perulangan)

1. Program Mengkonversi Dari angka ke Romawi

#include <cstdlib>

#include <iostream>

using namespace std;

int main(int argc, char *argv[])

{

int a;

char angka[20];



printf ("Masukan Angka:");

scanf("%d",&a);

switch(a){

case 1:strcpy(angka,"I\n");break;

case 2:strcpy(angka,"II\n");break;

case 3:strcpy(angka,"III\n");break;

case 4:strcpy(angka,"IV\n");break;

case 5:strcpy(angka,"V\n");break;

case 6:strcpy(angka,"VI\n");break;

case 7:strcpy(angka,"VII\n");break;

case 8:strcpy(angka,"VIII\n");break;

case 9:strcpy(angka,"IX\n");break;

case 10:strcpy(angka,"X\n");

}

printf("Jadi Huruf=%s",angka);



system("PAUSE");

return EXIT_SUCCESS;

}

Gambar 1 Tampilannya Program menngkonversi Angka Ke Romawi

2. Program Kalkulator Sederhana

#include <cstdlib>

#include <iostream>

using namespace std;

int main(int argc, char *argv[])

{

int a,b,c,pilihan;

printf ("masukan nilai a:");

scanf ("%i",&a);

printf ("masukan nilai b:");

scanf ("%i",&b);



printf("MEnu\n");

printf ("1. Pertambahan\n");

printf ("2. Pengurangan\n");

printf("3.Perkalian\n");

printf("4. Pembagian\n");



printf ("Pilih Menu : ");

scanf("%d",&pilihan);

switch (pilihan){

case 1:

c=a+b;

printf("Hasil Penjumlahan= %i\n",c);

break;

case 2:

c=a-b;

printf("Hasil Pengurangan= %i\n",c);

break;

case 3:

c=a*b;

printf ("Hasil Perkalian = %i\n",c);

break;

case 4:

c=a/b;

printf ("Hasil Pembagian= %i\n",c);

break;



}

system("PAUSE");

return EXIT_SUCCESS;

}

Gambar 2.2 Tampilan Calkulator Sederhanan

3. persamaan kuadrat

#include <cstdlib>

#include <iostream>



using namespace std;



int main(int argc, char *argv[])

{

int a,b,c;

float x1,x2;

printf("Masukkan nilai a : ");

scanf("%i",&a);

printf("Masukkan nilai b : ");

scanf("%i",&b);

printf("Masukkan nilai c : ");

scanf("%i",&c);

printf("\n");

x1 = -b + ((b*b) - (4*a*c)^0,5) / 2*a;

printf("Hasil x1 adalah : %.2f \n",x1);

x2 = -b - ((b*b) - (4*a*c)^0,5) / 2*a;

printf("Hasil x2 adalah : %.2f \n",x2);

printf("\n");

system("PAUSE");

return EXIT_SUCCESS;

}

4. Menghitung Nilai Akhir

#include <cstdlib>

#include <iostream>

using namespace std;

int main(int argc, char *argv[])

{

int uts, uas, nilai;

printf("1. Masukan nilai uts ");

scanf("%i",&uts);

printf("2. Masukan nilai uas ");

scanf("%i",&uas);

nilai=(uts+uas)/2;

if(nilai > 75)

{

printf("Nilai : A \n ");

}

else if(nilai <= 75 && nilai > 60)

{

printf("Nilai : B \n ");

}

else if(nilai <= 60 && nilai > 50)

{

printf("Nilai : C \n ");

}

else if(nilai <= 50 && nilai > 40)

{

printf("Nilai : D \n ");

}

else if(nilai <= 40)

{

printf("Nilai : E \n ");

}

system("PAUSE");

return EXIT_SUCCESS;

}

Gambar 4 Tampilan Menghitung Nilai Akhir