const optimizations check

const byte debug=0;

void setup() {
  // put your setup code here, to run once:
 if (debug) Serial.begin(9600);
  pinMode(13, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(13, HIGH);
  if (debug) Serial.print("High");
  delay(1000);
  digitalWrite(13, LOW);
  if (debug) Serial.print("Low");
  delay(1000);

}

// const byte debug = 1, program size: 2,332 bytes
// const byte debug = 0, program size 1,030 bytes
// Serial Commented Out, program size: 1,030 bytes