ожидаемый неквалифицированный-id раньше, если

#include <IRremote.h>
const int pingPin=7;
int PIR=0;
int IR_Recv=11;
IRrecv irrecv(IR_Recv);
decode_results results;

void setup () 
{
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(10, OUTPUT);
  
  Serial.begin(9600);
}

void loop()
{long duration,cm;
 pinMode(pingPin, OUTPUT);
 digitalWrite(pingPin, LOW);
 delayMicroseconds(3);
 digitalWrite(pingPin, HIGH);
 delayMicroseconds(3);
 digitalWrite(pingPin, LOW);
 
 pinMode(pingPin, INPUT);
 duration = pulseIn(pingPin, HIGH);
 
 cm = microsecondsToClockCycles(duration);
 
 Serial.print(cm);
 Serial.print("cm");
 Serial.println();
 if(cm<50)
 {
   digitalWrite(13, LOW);
   digitalWrite(12, LOW);
   digitalWrite(10, HIGH);}
 else
 {
   digitalWrite(13, LOW);
   digitalWrite(12, HIGH);
   digitalWrite(10, LOW);
 }
}
 if (IRrecv.decode (5results))
 {
   
 long int decode = results.value;
   Serial.println(results.value);
   switch(results.value);
   {
     
     case 16593103: Serial.println("0");
        digitalWrite(13, HIGH);
        digitalWrite(12, HIGH);
        digitalWrite(10, HIGH);
     break;
     
     case 16582903: Serial.println("1");
        digitalWrite(13, LOW);
        digitalWrite(12, LOW);
        digitalWrite(10, HIGH);
     break;
     
     case 16615543: Serial.println("2");
        digitalWrite(13, HIGH);
        digitalWrite(12, LOW);
        digitalWrite(10, LOW);
     break;
     
     case 16599223: Serial.println("3");
        digitalWrite(13, LOW);
        digitalWrite(12, HIGH);
        digitalWrite(10, LOW);
     break;
     
     case 16623703: Serial.println("5");
        digitalWrite(13, HIGH);
        digitalWrite(12, HIGH);
        digitalWrite(10, LOW);
     break;
     
   }
irrecv.resume();
 }
}
long microsecondsToInches(long microseconds);{
  return microseconds / 74 / 2;
}
long microsecondsToCentimetres(long microseconds);{
  return microseconds / 29 / 2;
}