how would we write update() method for Dijkstra's shortest path algorithm using priority

//ToDo Add Commentconst uint8_t BTN_PIN = 2;const uint8_t LED_PIN = 13; //ToDo Add Commentuint8_t buttonPrevState = LOW;uint8_t ledState = LOW; //ToDo Add Commentvoid setup(){  //ToDo Add Comment  pinMode(BTN_PIN, INPUT_PULLUP);  //ToDo Add Comment  pinMode(LED_PIN, OUTPUT);  //ToDo Add Comment  Serial.begin(9600);} void loop(){  //ToDo Add Comment  uint8_t buttonState = digitalRead(BTN_PIN);    //ToDo Add Comment  Serial.print(buttonState);  Serial.print(buttonPrevState);  Serial.print(ledState);  Serial.println("");      //ToDo Add Comment  if(buttonState != buttonPrevState)  {    ledState = !ledState;    digitalWrite(LED_PIN, ledState);  }    buttonPrevState = buttonState;      //ToDo Add Comment  delay(500);}   1. Based on the design and the code, explain what the primary function of this board is. Complete thecode by adding appropriate comments in the designated lines.2. Identify what the main problem in the code is and how it can affect the end-users keeping interrupts in mind.3.…

The following html and javascript code deals with an Analog clock please do some modification to clock.html and clock.js. Changes will be to add a new event handler that will be invoked when a new button your create is pressed. The functionality could be anything you want to do, but I might recommend setting the clock back to 12:00. here is html code and javascript code is in the text box Analog Clock .hour-input { color: blue; margin-right: 5px; width: 30px; } .minute-input { color: red;

For this code please add these features making it be able to : #generate a blank image with black background, picture size is the same as frame #allow it to calculate center point #Draw white circles into the image generated at line 6, diameter is 6