55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
#include <stdio.h>
|
|
|
|
#define ADD 1
|
|
#define SUB 2
|
|
#define MUL 3
|
|
#define DIV 4
|
|
|
|
int main(void) {
|
|
double a, b;
|
|
int op;
|
|
int retry = 1;
|
|
|
|
do {
|
|
printf("Input first number: ");
|
|
scanf("%lf", &a);
|
|
printf("Input second number: ");
|
|
scanf("%lf", &b);
|
|
|
|
printf("Select Operation:\n"
|
|
"[1]: Addition\n"
|
|
"[2]: Subtraction\n"
|
|
"[3]: Multiplication\n"
|
|
"[4]: Division\n"
|
|
"> ");
|
|
scanf("%d", &op);
|
|
|
|
switch (op) {
|
|
case ADD:
|
|
printf("ANS: %lf\n", a + b);
|
|
break;
|
|
case SUB:
|
|
printf("ANS: %lf\n", a - b);
|
|
break;
|
|
case MUL:
|
|
printf("ANS: %lf\n", a * b);
|
|
break;
|
|
case DIV:
|
|
if (b == 0.0) {
|
|
puts("Zero Division");
|
|
return 1;
|
|
}
|
|
printf("ANS: %lf\n", a / b);
|
|
break;
|
|
default:
|
|
puts("Undefined Operation");
|
|
return 1;
|
|
}
|
|
|
|
printf("Retry? [1/0]: ");
|
|
scanf("%d", &retry);
|
|
} while (retry == 1);
|
|
|
|
return 0;
|
|
}
|