int ledPines[] = {2,3,4,5,6,7,8,9,10,11};
int ledCounts;
#define pot 0 
#include <stdio.h>
#include <string.h>

void setup() {
ledCounts = sizeof(ledPines); 
for (int i = 0; i < ledCounts; i++) {
pinMode(ledPines[i], OUTPUT);}
Serial.begin(9600);

}

void loop() {

int valorpot = 0;
valorpot =  analogRead(pot);
printf(valorpot);
for (int i = 0; i<9 ;i++){digitalWrite(ledPines[i], LOW);}

if (valorpot >= 102){digitalWrite(ledPines[0],HIGH);}
if (valorpot < 102){digitalWrite(ledPines[0],LOW);}

if (valorpot >= 204){digitalWrite(ledPines[1],HIGH);}
if (valorpot < 204){digitalWrite(ledPines[1],LOW);}

if (valorpot >= 307){digitalWrite(ledPines[2],HIGH);}
if (valorpot < 307){digitalWrite(ledPines[2],LOW);}

if (valorpot >= 409){digitalWrite(ledPines[3],HIGH);}
if (valorpot < 409){digitalWrite(ledPines[3],LOW);}  

if (valorpot >= 512){digitalWrite(ledPines[4],HIGH);}
if (valorpot < 512){digitalWrite(ledPines[4],LOW);}

if (valorpot >= 614){digitalWrite(ledPines[5],HIGH);}
if (valorpot < 614){digitalWrite(ledPines[5],LOW);}

if (valorpot >= 716){digitalWrite(ledPines[6],HIGH);}
if (valorpot < 716){digitalWrite(ledPines[6],LOW);}

if (valorpot >= 819){digitalWrite(ledPines[7],HIGH);}
if (valorpot < 819){digitalWrite(ledPines[7],LOW);}

if (valorpot >= 921){digitalWrite(ledPines[8],HIGH);}
if (valorpot < 921){digitalWrite(ledPines[8],LOW);}

if (valorpot >= 1023){digitalWrite(ledPines[9],HIGH);}
if (valorpot < 1023){digitalWrite(ledPines[9],LOW);} 

}