Many people get stuck in Microsoft OA, but looking back it's not that the question itself is difficult, but that some very typical problems appear repeatedly: such as...

I have been reading a lot of OA recently. The overall experience of this Google is still a one-sentence evaluation: the number of questions is small, but the cost of thinking is not low. Not the kind that relies on your hands...

Recently, Two Sigma OA has been released one after another. I just finished one set today. My overall experience can be summarized in one sentence: the questions are neither too strange nor too strange, and the difficulty is medium to basic...

I participated in TikTok’s OA on January 25th, and the overall experience was pretty good. The questions were CodeSignal’s classic four-question model. …

This time I share the overall experience and topic review of Point72 2026 Summer OA. The overall process is very smooth, no need to start shooting...

Recently, Amazon OA 2026 has begun to increase its volume, mainly from late January to early February. From the overall experience…

In the process of preparing for Microsoft OA questions, many students will have an illusion: the questions seem not difficult, but really...

If you’re preparing for Snowflake 2026 OA, or are already halfway through HackerRank and starting to make your own…

Stripe OA is different from Google or Amazon's OA. Stripe's questions are usually one question per hour, and the single question...

I recently applied for Uber 2026 OA. The platform is still CodeSignal. There are 4 questions and it takes 70 minutes to complete. To be honest…