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OA NVIDIA OA real question sharing｜Two questions classic combination explanation (monotonic stack + array construction)

Recently a Programhelp North American student successfully completed the NVIDIA OA, and we reviewed the content of this test together. He is a Canadian...

OA J.P. Morgan 2026 OA Interview｜Two Questions + Solutions and Preparation Advice

Just recently finished J.P. Morgan's 2026 New Grad OA and the overall experience was very smooth. The questions weren't too tricky, but...

OA Optiver 2026 OA Full Process Review｜Quantitative Research Test + Probability + Logic + Zap-N Details

Recently, I accompanied a student to finish Optiver 2026 Online Assessment, which contains four modules: Quant...

OA ZipRecruiter 2026 NG OA Real Question Sharing｜Four levels of advanced system questions with clear logic but super pitted details!

Recently, I accompanied my classmates to finish ZipRecruiter's 2026 New Grad OA, which can be said to be "moderately easy but very...

OA Hudson River Trading Online Assessment | A quick look at four question ideas: logic, simulation, arrays, and stacks covered!

Just last week, I took a student through a Hudson River Trading Online Assessment, a set of four...

OA Google Online Assessment Test | Google OA Two questions 18 minutes full AC!

I just took a CS Master's student to complete the latest round of the Google Online Assessment Test, two questions with a time limit of...

OA MathWorks OA latest question type analysis | Two questions full AC thinking explanation + summary of high-frequency test points | 2026 NG

This morning I just took a student who just finished the latest OA from MathWorks, and it only took 15 minutes to AC the two programming questions....

OA Stripe 26 New Grad OA seconds! 60 minutes a question 5 stages, the original logic questions can be so cool!

Just last week, I accompanied a master's student to complete the Stripe 2026 New Grad OA. This student is a CS transfer...

Wayfair DS OA latest interview experience｜SQL + Pandas + Case full analysis, an article to take you to understand the three major types of questions

OA Wayfair DS OA latest interview experience｜SQL + Pandas + Case full analysis, an article to take you to understand the three major types of questions

Just finished the OA for Wayfair Data Scientist and it was surprisingly "friendly"! The whole session was 105 minutes, three questions...

OA Citadel OA Interview Analysis 2026｜Online Assessment question types, difficulty levels and clearance strategies

As a programmer aiming at the top financial technology companies, CITADEL has always been the "dream company" in many people's hearts. This time, we took the students to complete the C...