int a = 1;
int b = 12;
int c = 13;
int d = 4;
int e = 5;
int f = 6;
int g = 7;
int DIG1 = 8;
int DIG2 = 9;
int DIG3 = 10;
int DIG4 = 11;
int last;
volatile byte state = LOW;

void setup() {
  // put your setup code here, to run once:
  //sharai baltimore's code

pinMode (1, OUTPUT);
for (int i = 4; i < 14; i++) // making pins 1-11 ouputs
{
 pinMode(i, OUTPUT);
}

}


void loop() { 
  // put your main code here, to run repeatedly:

int num;

for (int count = 0; count < 10; count++)
{
  for (int tenth = 0; tenth < 10; tenth++)
  {
  num = tenth;
  }

  int ans = picknumber(num);

  digitalWrite (DIG1, LOW);
  digitalWrite (DIG2, LOW);
  digitalWrite (DIG3, LOW);
  digitalWrite (DIG4, HIGH);
  delay (5);
  flash ();
  delay (6);

  if (num = 9)
  {
    for (int sec1 = 0; sec1 < 10; sec1++)
    {
    num = sec1;
    }

    int ans = picknumber(num);

    digitalWrite (DIG1, LOW);
    digitalWrite (DIG2, LOW);
    digitalWrite (DIG3, HIGH);
    digitalWrite (DIG4, LOW);
    delay (5);
    flash ();
    delay (6);

    if (num = 9)
    {
      for (int sec2 = 0; sec2 < 10; sec2++)
      {
      num = sec2;
      }

      int ans = picknumber(num);

      digitalWrite (DIG1, LOW);
      digitalWrite (DIG2, HIGH);
      digitalWrite (DIG3, LOW);
      digitalWrite (DIG4, LOW);
      delay (5);
      flash ();
      delay (6);

      if (num = 9)
      {
        for (int mins = 0; mins < 10; mins++)
        {
        num = mins;
        }

        int ans = picknumber(num);

        digitalWrite (DIG1, HIGH);
        digitalWrite (DIG2, LOW);
        digitalWrite (DIG3, LOW);
        digitalWrite (DIG4, LOW);
        delay (5);
        flash ();
        delay (6);
      }
    }
  }
}

}


int picknumber (int number) // picks which number to display from the funtions below
{
  switch (number) // switch cases to call each number's function
  {
    default:
      zero();
      break;

    case 1:
      one();
      break;

    case 2:
      two();
      break;

    case 3:
      three();
      break; 

    case 4:
      four();
      break;

    case 5:
      five();
      break;

    case 6:
      six();
      break;

    case 7:
      seven();
      break;

    case 8:
      eight();
      break;

    case 9:
      nine();
      break;
  }
}

void zero () // writes the number zero to the pins for the multisegment
{
  digitalWrite(a, LOW); // 0
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, HIGH);
}

void one () // writes the number one to the pins for the multisegment
{
  digitalWrite(a, HIGH); // 1
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}

void two () // writes the number two to the pins for the multisegment
{
  digitalWrite(a, LOW); // 2
  digitalWrite(b, LOW);
  digitalWrite(c, HIGH);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
}

void three () // writes the number three to the pins for the multisegment
{
  digitalWrite(a, LOW); // 3
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
}

void four () // writes the number four to the pins for the multisegment
{
  digitalWrite(a, HIGH); // 4
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void five () // writes the number five to the pins for the multisegment
{
  digitalWrite(a, LOW); // 5
  digitalWrite(b, HIGH);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void six () // writes the number six to the pins for the multisegment
{
  digitalWrite(a, LOW); // 6
  digitalWrite(b, HIGH);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void seven () // writes the number seven to the pins for the multisegment
{
  digitalWrite(a, LOW); // 7
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}

void eight () // writes the number eight to the pins for the multisegment
{
  digitalWrite(a, LOW); // 8
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void nine () // writes the number nine to the pins for the multisegment
{
  digitalWrite(a, LOW); // 9
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void flash () // turns off all of the digits
{
  digitalWrite (DIG1, LOW);
  digitalWrite (DIG2, LOW);
  digitalWrite (DIG3, LOW);
  digitalWrite (DIG4, LOW);
}