Source program kalkulator++ menggunakan bahasa C

#include<stdio.h>

#include<math.h>

#include <conio.h>

char huruf;

char x=0;

int n=0;

float a=0;

float b=0;

float c=0;

int q;

int g=0;

char operatore;

double operand1, operand2;

main()

{

do

{

printf("\t********************************************\n");

printf("\t*Welcome to Program Apa Aja Boleh Lah      *        \n");

printf("\t*1. Program Menghitung Sisi Miring Segitiga*\n");

printf("\t*2. Game                                                           *\n");

printf("\t*3. KaBaTaKu                               *\n");

printf("\t*4. Exit                                   *\n");

printf("\t********************************************\n");

printf("\t\t   masukkan pilihan anda: ");

scanf("%d",&q);

switch(q)

{

case 1 : printf ("masukan a : ");

                                      scanf ("%f",&a);

                                      printf ("masukan b : ");

                                      scanf ("%f",&b);

                                      c=(a*a)+(b*b);

                                      printf ("jadi sisi miring segitiga adalah : %2.f\n",sqrt(c));

                                      break;

case 2 :        printf("Tebak-tebakan aja\n");

                                      huruf=getch();//menyembunyikan input

                                      while (x!=huruf)

                                      {

                                      n++;

                                      printf("\nTebakan ke-%d",n);

                                      printf(" : ");x=getche();

                                      }

                                      printf("\nSELAMAT ANDA BENAR");

                                      printf("\npada tebakan ke-%d\n",n);

                                      break;

case 3 : clrscr();

                                      puts("Program kalkulator sederhana.....\n"); puts("operator yang dapat digunakan adalah : "); puts("* => perkalian\n");

                                      puts("/ => pembagian\n"); puts("+ => penjumlahan\n"); puts("- => pengurangan\n")

                                      ;

                                      puts("Contoh Menghitung => 5 / 2 Lalu tekan ENTER");

                                      printf("\nSilahkan Menghitung Angka : ");

                                      scanf("%lf %c %lf", &operand1, &operatore, &operand2);

                                      switch (operatore)

                                      {

                                      case '*' : printf("Hasil = %.10lg", operand1 * operand2); break;

                                      case '/' : printf("Hasil = %.10lg", operand1 / operand2); break;

                                      case '+' : printf("Hasil = %.10lg", operand1 + operand2); break;

                                      case '-' : printf("Hasil = %.10lg", operand1 - operand2); break;

                                      default : puts("\nPerintah Anda Salah Silahkan Ulangi\n");

                                      }

                                      }}

while(q<=3);

printf("program keluar");

}