// C++ code
//

#define LedGreen 4
#define LedYellow 0
#define LedRed 2

unsigned long previousTime1 = 0;
unsigned long previousTime2 = 0;
unsigned long previousTime3 = 0;
unsigned long previousMillis1 = 0;


void setup()
{
  pinMode(LedGreen, OUTPUT);
  pinMode(LedYellow, OUTPUT);
  pinMode(LedRed, OUTPUT);
}

void tarefaLedGreen(){
  unsigned long current = millis() - previousTime1;
  
  if((millis()-previousTime1)<1000){
     digitalWrite(LedGreen, HIGH);
  }else{
    digitalWrite(LedGreen, LOW);
  }
  if((millis()-previousTime1)>1500){
    previousTime1 = millis();
  }
  
}

void tarefaLedYellow(){
 unsigned long current = millis() - previousTime2;
  
  if((millis()-previousTime2)<500){
    digitalWrite(LedYellow, HIGH);
  }else{
    digitalWrite(LedYellow, LOW);
  }
  if((millis()-previousTime2)>1000){
    previousTime2 = millis();
  }
  
}

void tarefaLedRed(){
 unsigned long current = millis() - previousTime3;
  
  if((millis()-previousTime3)<250){
    digitalWrite(LedRed, HIGH);
  }else{
    digitalWrite(LedRed, LOW);
  }
  if((millis()-previousTime3)>500){
    previousTime3 = millis();
  }
}

void loop()
{
  tarefaLedRed();
  tarefaLedYellow();
  tarefaLedGreen();  
  
}