First, I had a screen call with a recruiter.

Then, I had two technical interviews with senior engineers and managers.

Then, I had a behavioral/technical interview with the VP.

The last interview was with an HR representative.

Given an array of random numbers, push all the zeroes of a given array to the end of the array. For example, if the given array is {1, 9, 8, 4, 0, 0, 2, 7, 0, 6, 0}, it should be changed to {1, 9, 8, 4, 2, 7, 6, 0, 0, 0, 0}. The order of all other elements should remain the same. Expected time complexity is O(n) and extra space is O(1).

Input: arr[] = {1, 2, 0, 4, 3, 0, 5, 0}; Output: arr[] = {1, 2, 4, 3, 5, 0, 0, 0};

Input: arr[] = {1, 2, 0, 0, 0, 3, 6}; Output: arr[] = {1, 2, 3, 6, 0, 0, 0};