Senior Software Engineer

We are suffering from the Second wave of Covid-19. The Government is trying to increase its vaccination drives. Ninja wants to help the Government to plan an effective method to help increase vaccination following safety measures. Time is running out. Can you help the nation?

You are given two positive integers: ‘n,’ ‘maxVaccines’ denoting the number of days for which this vaccination drive will go on and the total number of vaccines available for the drive, respectively. You have to find the number of vaccines administered each day. You are also given a number ‘dayNumber,’ and we are interested to know the maximum number of vaccines that can be administered on ‘dayNumber’ th day.

The rules of the vaccination drive :

1. There should be a positive number of vaccines administered each day during the vaccination drive.

2. The absolute difference between the number of vaccines in two consecutive days should not exceed 1.

3. The sum of all the elements of the vaccines array does not exceed maxVaccines, that is, you cannot administer more vaccines than what is provided to you.

4. Vaccines administered on ‘dayNumber’ th day should be maximized.

Make a UI with search box in which user can give input and based on input show the relevant images to user.
For that the flicker API was given which was returning the images url. And the UI design was also given and using WPF you need to develop the application having the same UI.

The whole round was on threading from the basics like tread safe data types, locks to the reader writer locks and multiple read single write scenarios
He asked me to implement the single write multiple read code using classes and locks. Somehow I managed to do that but it was not the best solution. 
Then we discussed about Singleton class and how to make them thread safe, I wrote codes and all.

Questions were like why do you want to join this company & what are the reasons to leave the previous company.
And then some situations like cross team collaboration and what will you do if this happens like other team members are not replying/delaying the response.
What do you feel on streching the work sometimes.
What are your achievements, hobbies