[Solved] Bench with counting capabilities

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27 
                for (int p = 0; p < numberOfSensors != i != j !=k !=l !=m !=n !=o; p++) {
                  now[p] = analogRead(ldr_pins[p]);
                  for (int q = 0; q < numberOfSensors != i != j !=k !=l !=m !=n !=o !=p; q++) {
                    now[q] = analogRead(ldr_pins[q]);
                    for (int r = 0; r < numberOfSensors != i != j !=k !=l !=m !=n !=o !=p !=q; r++) {
                      now[r] = analogRead(ldr_pins[r]);

Now I'm confused.

Here is what I have in mind. It compiles, but I haven't tested because I don't have all those sensors:

const byte numberOfSensors = 10;
const int THRESH = 200; // Threshold value
const byte counterPin = A10; // Counter pin

const byte ldr_pins [numberOfSensors] = { A0, A1, A2, A3, A4, A5, A6, A7, A8, A9};
int now [numberOfSensors] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
int then [numberOfSensors] = { 1000, 1000, 1000, 1000, 1000, 1000, 1000, 1000, 1000, 1000};

void setup()
{
  pinMode(counterPin, OUTPUT); //Sets Counter to OUTPUT
  pinMode(13, OUTPUT); //Sets Pin 13 the LED to Output
  Serial.begin(9600);
}  // end of setup

void loop()
  {
  
  // read sensors
  for (int i = 0; i < numberOfSensors; i++)
     now[i] = analogRead(ldr_pins[i]);

  // check each one
  for (int i = 0; i < numberOfSensors; i++)
    {
     // change over threshold?
     if (abs (then [i] - now[i]) > THRESH)
       {
       Serial.print ("Someone ");
       if (now [i] > then [i])
          {
          Serial.print ("sat on");
          digitalWrite(counterPin, HIGH);  // hit counter
          }  
       else
          {
          Serial.print ("got up from");
          }  
       Serial.print (" bench ");
       Serial.println (i);       
       }  // end of over threshold
     
    }  // end of checking each sensor
    
  // remember for next time
  for (int i = 0; i < numberOfSensors; i++)
     then [i] = now [i];
 
  delay (100);  // brief delay
  digitalWrite(counterPin, LOW);
                 
}  // end of loop