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Urban Company SDE-1 OA 2025 | Service Partner Line Assignment & Critical Path of Dependent Tasks
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Urban Company OA | Divison Nodes | Meeting Room | Array Transfer | DTU | 30th July 2023
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Answer: DoorDash OA (2024) | DashMart Routing & Restaurant Menu Differences
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Sahil Jain
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Solution - DashMart Routing Strategy Instead of running BFS from every customer or road cell, start BFS simultaneously from all DashM…
Answer: Atlassian OA (2025) | Ranked Choice Voting & Halving Technical Debt
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Sahil Jain
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Solution - Ranked Choice Voting System Strategy Maintain a score table for every idea using a HashMap. Each ballot contributes: …
Answer: Swiggy SDE-1 OA | Weighted Job Scheduling & Recursive String Compression
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Solution 1 - Maximize Delivery Earnings Approach This is the classic Weighted Job Scheduling problem. Create job objects contai…
Answer: Razorpay SDE-1 OA | Tree Contribution Technique & 3D Knapsack DP
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Solution 1 - Edge Strength Approach This problem uses the Contribution Technique with Disjoint Set Union (DSU). Sort all edges …
Answer: Arcesium OA 2023 | Reverse String & Graph Bipartition
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Solution 1 - The String Transformer Approach This is the classic Reverse String II pattern. Convert the string into a character…
Answer: Salesforce SDE OA2024 | Minimize Malware Spread & Partition Array Into Two Equal
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Sahil Jain
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Solution 1 - Network Virus Spread Strategy This problem is a variation of the classic Minimize Malware Spread problem. Use a Disjo…
Answer: Goldman Sachs Software Engineer OA 2026 | Find the Damaged Toy, Maximum Stock Pr
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Sahil Jain
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Solution 1 - Find the Damaged Toy Strategy Instead of simulating toy distribution one by one, directly compute the final child using …
Answer: IBM Associate Software Engineer OA 2026 | Maximum Balanced Subarray & Detect Uns
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Sahil Jain
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Solution 1 - Maximum Balanced Subarray Strategy This problem is equivalent to the classic Longest Valid Parentheses problem. Treat…
Answer: Coforge Online Assessment 2025 | Logistics Fleet Shipment Continuity & Cloud Dat
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Solution 1 - Logistics Fleet Shipment Continuity Strategy Use prefix sum remainder hashing. If two prefix sums have the same remai…
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Solution - Corporate Registry Lexicographical Audit Strategy Since the strings contain only lowercase English letters, we can use a f…
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Solution - Corporate Network Routing Matrix Strategy A sorting-based solution requires O(N log N) time, which violates the problem…
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Solution 1 - Enterprise Microservice Hash Stream Strategy Since array elements can be positive, negative, or zero, a sliding window a…
Answer: ESRI INDIA HIRING | Number of Provinces Problem | Online Assessment OA Question
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Approach This problem can be solved using the Union-Find (Disjoint Set Union - DSU) data structure. Key Idea Initially, every city…
Answer: TATA POWER Hiring Challenge | Count Nodes With the Highest Score Problem | On Ca
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Approach The score of a node depends on the sizes of the connected components formed after removing it. To calculate component sizes …
Answer: TANLA PLATFORMS Hiring | Count Words Obtained After Adding a Letter | On Campus
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Approach Since each word contains only lowercase letters and no duplicates, represent every word as a bitmask. For example: "abc…
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