int LED[8];
int Sw[4] {0, 11, 12, 13};
int Da;


void debugBlock (int i) {
Da=i;
if(digitalRead(Sw[1])==HIGH) { Da=Da+1; }
if(digitalRead(Sw[2])==HIGH) { Da=Da+2; }
if(digitalRead(Sw[3])==HIGH) { Da=Da+4; }
}   //end debug block

void allLED (bool State) {
  for (int i=0; i<=7; i++) {
    pinMode(LED[i], OUTPUT);
    digitalWrite(LED[i], State);
  }
}

void flash(int time) {
  allLED (HIGH);
  delay(time);
  allLED (LOW);
  delay(time);
}


void setup() {
  // put your setup code here, to run once:

for (int i=0; i<=7; i++) {
  LED[i]=i+3;                   //LED Pins start at 3 (3,4,5,6,7,8,9,10)
  pinMode(LED[i], OUTPUT);
  digitalWrite(LED[i], HIGH);   //Turn each light on as LEDs are defined
  delay(100);
  }

flash (800);
flash (800);
flash (800);

for (int i=1; i<=3;i++) {   //Switches start at pin 10+1 (11,12,13) 10 already used for LED
  //Sw[i]=i+10;    Already set in const at start    
  pinMode(Sw[i], INPUT);
  digitalWrite(LED[i], digitalRead(Sw[i]));  //Show each Switch as it is defined
  delay(100);
  }
flash (800);
flash (800);
}

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

Da=0;
//for (int i=1; i<=3; i++) {       //Read each Switch
//  if(digitalRead(Sw[i])==HIGH) {
//    Da=Da + 2^(i-1);             //Add 1 for Sw1, 2 for Sw2, 4 for Sw3.
//  }                              //Gives Binary number for 3 switches
//}

debugBlock ( 0 );                    //remove if not needed

allLED (HIGH);
delay (300);
allLED (LOW);
digitalWrite(LED[Da], HIGH);     //Turn on correct LED

delay(300);                       //Wait a bit

}                                //Loop program,  do it again...