Please any one can check these codes

Programming
1 
#include <LiquidCrystal.h> // includes the LiquidCrystal Library 
LiquidCrystal lcd(1, 2, 4, 5, 6, 7); // Creates an LC object. Parameters: (rs, enable, d4, d5, d6, d7) #include <LiquidCrystal.h> // includes the LiquidCrystal Library LiquidCrystal lcd(1, 2, 4, 5, 6, 7); // Creates an LC object. Parameters: (rs, enable, d4, d5, d6, d7) 
#include <Wire.h> 
int ir = A0;
int ir1 = A2;
int counter=0 ;
int currentState = 0;
int previousState = 0;

int counter1=0 ;
int currentState1 = 0;
int previousState1 = 0;
int total;

void setup() {
lcd.begin(16, 2);

pinMode(ir,INPUT);
pinMode(ir1,INPUT);

lcd.setCursor(0,0);
lcd.print("In = ");

lcd.setCursor(8,0);
lcd.print("OUT = ");

lcd.setCursor(0,1);
lcd.print("total = ");

}

void loop(){

int total= (counter -counter1);

if (digitalRead(ir)==0 ){

currentState = 1;
}
else {
currentState = 0;
}

if(currentState != previousState){
if(currentState == 1){

counter = ++counter ;
total= ++total;

lcd.setCursor(4,0);
lcd.print(counter);

lcd.setCursor(8,1);
lcd.print(total);
delay(500);

}
}
if (digitalRead(ir1)==0 ){

currentState1 = 1;
}
else {
currentState1 = 0;
}

if(currentState1 != previousState1){
if(currentState1 == 1){

counter1 = ++counter1;
total= --total;
lcd.setCursor(13,0);
lcd.print(counter1);

lcd.setCursor(8,1);
lcd.print(total);

delay(1000);

}
}
}
2

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