Arduino-line-follower-ultrasonic.txt

Please tell me , is my code correct?

/IR + Ultrasonic Line follower robot (black line on white surface)
 This robot also has ultrasonic range sensor that enables it to stop when any obstacle is on the black line.
 keshri-prasanjeet, keshriprasanjeet2@outlook.com/
 //inputs:
 ‪#‎ define ‬LIR 2 //left ir sensor
 #define RIR 3 //right ir sensor
 #define echoPin 4 //echo pin of ping )))
 //outputs:
 #define direction_L 5 //left forward
 #define direction_R 6 //right forward 
 #define triggerPin 7 //trigger pin of ping )))
 void setup() { //setup function
 Serial.begin(9600); //serial communication
 for(int i = 2; i < 5; i ++){ //initialize inputs:
 pinMode(i, INPUT);
 }
 for(int i = 5; i < 8; i ++){//initialize outputs:
 pinMode(i, OUTPUT);
 }
 Serial.println("ready"); //starting message 
 }
 void loop() { //loop function
 //reading sensors
 int DLIR = digitalRead(LIR); //left ir
 int DRIR = digitalRead(LIR); //right ir
 //trigger pulse of ping )))
 digitalWrite(triggerPin, LOW);
 delay(5);
 digitalWrite(triggerPin, HIGH);
 delay(5);
 digitalWrite(triggerPin, LOW);
 float dist = pulseIn(echoPin, HIGH); //get time
 dist = dist / 58; //scaling to cm
 Serial.println(dist); //print distance
 if(dist > 10){ //if no object on the path:
 if(DLIR == HIGH && DRIR == HIGH){ //if robot is on the BLACK path
 //go forward:
 analogWrite(direction_L, 255);
 analogWrite(direction_R, 255);
 Serial.println("go forward");
 }
 else if(DLIR == HIGH && DRIR == LOW){ //right sensor missed the parth
 //turn left:
 analogWrite(direction_L, 128);
 analogWrite(direction_R, 255);
 Serial.println("turn left");
 }
 else if(DLIR == LOW && DRIR == HIGH){ //left sensor missed the parth
 //turn right:
 analogWrite(direction_L, 255);
 analogWrite(direction_R, 128);
 Serial.println("turn right");
 }
 else{ //path missed!
 //stop:
 analogWrite(direction_L, 0);
 analogWrite(direction_R, 0);
 Serial.println("parth missed!");
 }
 }
 else{//object found
 //stop:
 analogWrite(direction_L, 0);
 analogWrite(direction_R, 0);
 Serial.println("object found");
 }
 delay(100);
 }