struct {
  const byte PinDet;
  const byte PinLed;
} sig [] = {
  { 11, A0 },
  { 10, A1 },
};
const int N = 4;

void setup() {
  for (int n = 0; n < N; n++)  {
    pinMode (sig [n].PinDet, INPUT_PULLUP);
    pinMode (sig [n].PinLed, OUTPUT);
  }
}

void loop() {
  for (int n = 0; n < N; n++)  {
    digitalWrite (sig [n].PinLed,
            digitalRead (sig [n].PinDet));
  }
}