Automatic Room Light Controller with Bidirectional Visitor

1#include<LiquidCrystal.h>
2LiquidCrystal lcd(13,12,11,10,9,8);
3#define  in 14
4#define out 19
5#define relay 2
6int count=0;
7void IN()
8{
9    count++;
10    if(count>=10)
11    {
12      count=10;
13      }
14    lcd.clear();
15    lcd.print("Person In Room:");
16    lcd.setCursor(0,1);
17    lcd.print(count);
18    delay(1000);
19}
20void OUT()
21{
22    count--;
23    if(count<=0)
24    {
25      count=0;
26      }
27    lcd.clear();
28    lcd.print("Person  In Room:");
29    lcd.setCursor(0,1);
30    lcd.print(count);
31    delay(1000);
32}
33void  setup()
34{
35  lcd.begin(16,2);
36  lcd.print("Visitor Counter");
37  delay(2000);
38  pinMode(in, INPUT);
39  pinMode(out, INPUT);
40  pinMode(relay, OUTPUT);
41  lcd.clear();
42  lcd.print("Person In Room:");
43  lcd.setCursor(0,1);
44  lcd.print(count);
45}
46void loop()
47{  
48  
49  if(digitalRead(in))
50  IN();
51  if(digitalRead(out))
52  OUT();
53  
54  if(count<=0)
55  {
56    lcd.clear();
57    digitalWrite(relay, LOW);
58    lcd.clear();
59    lcd.print("Nobody  In Room");
60    lcd.setCursor(0,1);
61    lcd.print("Light Is Off");
62    delay(200);
63  }
64  
65  else
66    digitalWrite(relay, HIGH);
67  
68}
69