Oracle App Dev (Oracle Fusion) visited our campus. They administered an online test that assessed basic knowledge of data structures, operating systems, programming, DBMS, grammar, aptitude, and logical ability. The test was easy. They shortlisted approximately half of the candidates who appeared. The test results were declared after a week and a half, and all shortlisted students were to participate in a pool campus drive to be held at IIIT Delhi.

The interview process was unstructured, and the recruiters behaved very unprofessionally. The PPT started 30 minutes late. The schedule was not announced beforehand, resulting in most candidates waiting for over 6 hours even for the first round of interviews. There was no uniformity in the difficulty level of questions asked, and interviewers posed random questions such as coding a Sudoku solver or an n*n Tic-Tac-Toe solver. There was no standard; some candidates were asked very easy questions like reversing a word. The interviewers seemed irritated and were not particularly polite.

I was asked four questions in the first round:

1. Given a sorted array of numbers from 1 to 100 with one missing number, find the missing number without traversing the full array.
2. Given an array consisting of 1s and 0s, shift all 1s to the right and 0s to the left.
3. Given an array consisting of 1s, 0s, and 2s, shift all 1s to the right, 0s to the left, and 2s to the middle.
4. Reverse only the sequence of words in a string.

The interviewer interviewed two candidates simultaneously, which made the process very confusing. The interviewer seemed sleep-deprived and sat with his head down while I coded the questions. He just wanted to get over with the process. He was unenthusiastic and demotivating. He told me to wait outside, which was their code for being selected for the next round.

Twenty minutes after the first round, I was called for the second round. The interviewer did not even acknowledge me. He asked what questions I was asked in my previous interview and requested me to tell him about myself. He then asked me to code the Towers of Hanoi. When I asked him to explain the problem, he looked as if he had been struck. He quickly explained the problem without mentioning that the blocks had to be picked up one by one. As a result, I coded the problem incorrectly. He gave me this problem to solve and left. He returned after 40 minutes and did not apologize. He was, in fact, worse than the first interviewer. He saw the solution and then told me the detail he had forgotten to mention. I asked him to give me a few more minutes to code. He went out again. This time, he returned after 10 minutes, and I explained the logic. He seemed satisfied with the logic but refused to give me more time to code. After that, he told me, "you are done for the day," implying I was eliminated.

They did not even have the courtesy to state clearly that I was eliminated from the process, which caused a lot of confusion and embarrassment. Some candidates who were supposedly eliminated ended up staying a few hours longer, thinking they were selected for the next round, simply because the interviewers used ambiguous language and did not clearly state whether they were in for the next round or not.

The entire interview experience was very bad.

1. There is a sorted array with numbers from 1 to 100. There is a missing number. Find that number without traversing the full array.

2. There is an array that consists of 1s and 0s. Shift all the 1s to the right and 0s to the left.

3. There is an array that consists of 1s, 0s, and 2s. Shift all the 1s to the right, 0s to the left, and 2s to the middle.

4. Reverse only the sequence of words in the string.