const int sizeOFarray = 5;
int b[] = {20, 50, 30, 10, 40};

int Minmax(int array[], bool minmax) {
  int result = array[0];

  for (int i = 1; i < sizeOFarray; i++) {

    if (minmax) { 
      if (array[i] < result) {
        result = array[i];
      }

    } else { 
      if (array[i] > result) {
        result = array[i];
      }
    }
  }
  return result;
}

void setup() {
  Serial.begin(9600);
  
  Serial.println("Array elements:");
  for (int i = 0; i < sizeOFarray; i++) {
    Serial.print("b[");
    Serial.print(i);
    Serial.print("] = ");
    Serial.println(b[i]);
  }

  int minValue = Minmax(b, true);
  Serial.print("Minimum value: ");
  Serial.println(minValue);

  int maxValue = Minmax(b, false);
  Serial.print("Maximum value: ");
  Serial.println(maxValue);
}

void loop() {
}