Got a call from a consultant. Was told that 5 rounds would be conducted: 4 technical and one cultural fit/director round.

I cleared 2 rounds, but the process was canceled midway.

HR called and started asking about my salary expectations and whether I was given any assignment to complete. Even though they told me I had cleared the second round and would schedule the next round the next day, asking for my time slots, they never scheduled it.

Minimum number of classrooms required given the start and end times of classes as an array.

Given an array of integers, shift all the zeros to the rightmost position (in-place solution).