problems getting arduino executing code

Using Arduino Programming Questions
#1 
int trigPin =   13;
int echoPin =   12;
int led =       11;
int led2 =      10;

void setup() {
  Serial.begin (9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(led, OUTPUT);
  pinMode(led2, OUTPUT);
}

void loop() {
  long duration, distance;
  digitalWrite(trigPin, LOW);  // Added this line
  delayMicroseconds(2); // Added this line
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10); // Added this line
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
  if (distance < 4) {  // This is where the LED On/Off happens
    digitalWrite(led,HIGH); // When the Red condition is met, the Green LED should turn off
  digitalWrite(led2,LOW);
}
  else {
    digitalWrite(led,LOW);
    digitalWrite(led2,HIGH);
  }
  if (distance >= 200 || distance <= 0){
    Serial.println("Out of range");
  }
  else {
    Serial.print(distance);
    Serial.println(" cm");
  }
  delay(500);
}
#2

What problems ?

#3

Well it compiles, uploads and executes for me, that's all anyone can say in the absence of any other info from you.

What makes you think it's not executing?

#4 
int led =       11;
int led2 =      10;

Do you count "uh-huh, 2, 3..."? If you are going to number some of the variables that appear to be a set, number ALL of them.

Better still, use an array.

#5