Created
September 13, 2017 02:48
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// NURIAN S WARDANA | |
#include <stdio.h> | |
void printHeader() { | |
printf("===================================\n"); | |
printf("| KALKULATOR FAKTORIAL |\n"); | |
printf("===================================\n"); | |
printf("| Panduan |\n"); | |
printf("| 1. Masukkan angka pertama |\n"); | |
printf("| sebagai bilangan yang |\n"); | |
printf("| ingin difaktorialkan. |\n"); | |
printf("| 2. Masukkan angka kedua |\n"); | |
printf("| sebagai berapa banyak |\n"); | |
printf("| operasi faktorial yang |\n"); | |
printf("| akan dilakukan. |\n"); | |
printf("| 3. Angka pertama dan kedua |\n"); | |
printf("| hanya boleh berbentuk |\n"); | |
printf("| bilangan bulat. |\n"); | |
printf("| akan dilakukan. |\n"); | |
printf("===================================\n"); | |
printf("\n\n"); | |
} | |
void printFooter() { | |
printf("\n\n"); | |
printf("===================================\n"); | |
printf("| Program sudah selesai. Tekan |\n"); | |
printf("| apa saja untuk mengulangi. |\n"); | |
printf("===================================\n"); | |
} | |
void printError() { | |
printf("\n\n"); | |
printf("===================================\n"); | |
printf("| Yang Anda masukkan tidak sesuai.|\n"); | |
printf("| Tekan apa saja untuk mengulangi.|\n"); | |
printf("===================================\n"); | |
} | |
void clearScreen() { | |
system("cls"); | |
printHeader(); | |
} | |
int factorial(int number) { | |
if (number <= 1) { | |
return 1; | |
} else { | |
return number * factorial(number - 1); | |
} | |
} | |
int main() { | |
clearScreen(); | |
int angka1, angka2; | |
char enter; | |
printf("Masukkan angka pertama, lalu tekan <enter>: "); | |
if(scanf("%d%c", &angka1, &enter) != 2) { | |
printError(); | |
getch(); | |
main(); | |
} | |
clearScreen(); | |
printf("Masukkan angka kedua, lalu tekan <enter>: "); | |
if(scanf("%d%c", &angka2, &enter) != 2) { | |
printError(); | |
getch(); | |
main(); | |
} | |
clearScreen(); | |
int count; | |
for(count = 0; count < angka2; count++) { | |
printf("%d! = %d\n", (angka1 + count), factorial(angka1 + count)); | |
} | |
printFooter(); | |
getch(); | |
main(); | |
return 0; | |
} |
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