Programming error

Projects Programming
2

Please put short programs in your Post so we don't have to download them. Like this

g#include <LiquidCrystal.h>
#include <Servo.h>
#include <NewPing.h>


#define TRIGGER_PIN  12 
#define ECHO_PIN     11  
#define MAX_DISTANCE 200 

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); 
Servo myservo;  

int pos = 0;   
int it = 10;
int lld;

LiquidCrystal lcd(6,5,7,4,3,2);

void setup() {
  lcd.begin(16, 2);
  myservo.attach(9); 
  Serial.begin(9600);
  delay(3000);
}

void loop() {
  int i = 0;
  int t = 0;
  float a = 0;

  for (i = 0; i < 180; i ++)
  {
    unsigned int uS = sonar.ping();
    myservo.write(i);
    delay(20);
    for (t = 0; t < it; t++)
    {
      uS = sonar.ping();
      a = uS/US_ROUNDTRIP_CM + a;
      delay(30);
    }
    
    a = a / (it-1);
    t = 0;
  
    Serial.println(a);
    a = 0;
lcd.print(uS/US_ROUNDTRIP_CM);
delay(500);
lcd.clear();
  }
}

...R