“The reason I decided to purchase the course was also due to their question bank. While practicing questions on DrillInsight, I discovered many new and unique ways of categorizing problems. The questions were systematically organized, and after completing a set of questions, I often had a “lightbulb moment.” This motivated me to purchase the course and combine it with the teachers' explanations to further enhance my algorithm knowledge and prepare for interviews. After enrolling in the course, listening to the teachers' lectures and working through my customized problem sets, my knowledge base expanded significantly. During interviews, I was able to quickly identify question types and come up with reliable solutions.” “Additionally, DrillInsight's question bank was much more comprehensive than I expected. While common problems from big tech companies can also be found on platforms like LeetCode, DrillInsight not only includes those questions but also meticulously organizes interview questions from non-IT companies, which matched the companies I applied to. In the end, I encountered either the exact questions or slight variations of them during my VOs, which helped me successfully pass the interviews.”

”I am a CS student with a solid programming foundation, but I never had a systematic learning experience with algorithms during my time in school. As a result, I faced significant challenges during job hunting after graduation, especially when it came to algorithm questions in OA and VO interviews. I could barely get through OA by relying on memorization, but when it came to the VO rounds, I couldn’t handle it at all. The variation in the questions and the breadth of the topics tested were overwhelming, and I often failed in the VO rounds. It was at that point that I started considering enrolling in an algorithm course. There are many algorithm courses available, after careful consideration, I chose DrillInsight. This decision was influenced by my previous experience purchasing their resume revision and mock interview services, which were of excellent quality and left a lasting impression on me, so I decided to try their algorithm course as well.“ ”After starting DrillInsight’s algorithm course, what surprised me the most was that their instructors are all full-time teachers! They have unique insights into teaching methods, focusing not on rote memorization of algorithms but on understanding the root of the problem, guiding us to grasp the logic and scenarios behind the algorithms. This helped me truly understand the 3Ws of algorithms (what, why, when). Additionally, the instructors are also experienced software developers previously working in large companies! And beyond algorithm knowledge, they also shared a lot of interview and workplace tips. I am extremely grateful for both the course and the instructors at DrillInsight!“