Square/Block OA Questions 2021: What Candidates Actually Saw
Last updated: May 2026
11+ Square/Block online assessment questions reported by candidates who took the OA in 2021. Sourced from 1Point3Acres, LeetCode, Blind, Glassdoor, and Reddit. Data grows as new reports are added.
Square/Block OA Format in 2021
The Square/Block online assessment has followed a consistent format across multiple hiring cycles. Based on 2021 reports in the database, candidates typically see 2 to 3 algorithmic coding problems delivered through a proctored online platform (most commonly HackerRank). Some roles include additional behavioral or work-simulation components after the coding section.
Time limits reported by candidates range from 70 to 110 minutes for the full assessment. The coding problems are auto-graded, so edge case handling and runtime efficiency both matter. Partial credit is available on some platforms if your solution passes a subset of test cases.
Real Square/Block OA Questions from 2021
Sprinklr Online Assessment Questions - 2021 On-Campus
The test consisted of 3 questions on hackerearth platform of 50, 75 and 100 points respectively. 1. Given two arrays A and B of size n. Perform atmost n operations of...
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Codenation OA SDE 1
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PhonePe Online Assessment Questions
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KLA Interview Experience | Software Engineer | Chennai
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Food Delivery to a Tech Park | OA | Swiggy
A Delivery Partner can deliver multiple orders to a Tech Park at the same time. On the way back to the starting point, the Delivery Partner may pick up additional orders...
KLA|Software Engineer-2|July21[Offer]
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CodeSignal | sortMatrixByOccurrences
Given a square matrix of integers m, your task is to rearrange its numbers in the following way: 1) First, sort its values in ascending order of how frequently the number...
Media.net | OA | SSE | Mar-2021
Time: 60min Number of Question: 2 Problem 1: https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii/ **Problem 2: An array A is called "PrimeArray" if there is no two elements such that their product is a perfect square. A = {...
Pure Storage | Technical Round | Member Of Technical Staff
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Topic Breakdown (2021 OA)
Topics reported by candidates who took the Square/Block OA in 2021:
Difficulty Breakdown (2021 OA)
1
easy
Difficulty labels are reported by candidates or inferred from LeetCode ratings.
How to Prepare for the Square/Block OA
The Square/Block OA is a timed, auto-graded coding test. Preparation is different from interview prep: you need to optimize for both correctness and speed, since partial credit requires passing test cases, not just showing reasoning.
- Practice timed sessions. Set a timer for 35 to 45 minutes per problem and simulate the real constraint.
- Focus on the topic clusters that appear most in Square/Block OA reports: dynamic programming, graphs, arrays, and strings make up the majority of reported problems.
- Read the problem constraints carefully before writing code. The constraints often reveal the expected time complexity and algorithm type.
- Use the LeakCode database to review 2021 OA questions from actual candidates. Pattern recognition across multiple sightings is a stronger prep signal than any single mock problem.
- If the OA includes a work simulation section, practice under realistic conditions. This section tests judgment and values alignment, not coding ability.
FAQ
What does the Square/Block OA look like in 2021?
Based on 2021 candidate reports, the Square/Block OA typically includes 2 to 3 coding problems and runs 70 to 110 minutes. Topics lean toward dynamic programming, graphs, arrays, and strings. Some roles include a work simulation section after the coding component.
How long is the Square/Block OA?
Most candidates report 70 to 90 minutes for the coding component. Roles with additional work simulation sections extend the total time to 110 to 150 minutes. Check your invitation email for the exact time allocation for your specific role.
What platform does Square/Block use for the OA?
Square/Block uses HackerRank or its own proprietary platform depending on the role and hiring cycle. Your invitation will specify the platform. Both platforms support multiple languages including Python, Java, C++, and JavaScript.
Are these real Square/Block OA questions?
Yes. All questions in the LeakCode database come from candidate reports on 1Point3Acres, Blind, Glassdoor, Reddit, and LeetCode. They are not AI-generated. Each question links to its source where available.
Other Square/Block OA Years
Related: Square/Block OA Hub · Square/Block All Questions · All OA Questions · Data Sources