Update cv3/program.c

cv3/program.c

@@ -92,7 +92,7 @@ int read(struct stack *s) {
                     case '/':
                         if (b == 0) {
                             printf("division by zero\n");
-                            exit(1); // Exit on division by zero
+                            exit(0); // Exit on division by zero
                         }
                         result = a / b;
                         break;