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Answer: RELIANCE JIO Hiring | On Campus OA (2024) | Optimal Partition of String by Padala Indira Bhavani • 0
Approach Use a Greedy Strategy. Maintain a set of characters present in the current substring. For each character: If the ch…
Answer: HUAWEI TECHNOLOGIES Hiring | On Campus OA (2024) | Encode and Decode TinyURL by Padala Indira Bhavani • 0
Approach To implement TinyURL: Generate a random 6-character code. Store mapping: Long URL → Short URL Short Code …
Answer: WELLS FARGO Hiring | Off Campus OA (2024) | Maximum Number of Achievable Transfe by Padala Indira Bhavani • 0
Approach Since the number of requests is at most 16, we can try every possible subset of requests. For each subset: Track emplo…
Answer: Standard Chartered OA 2025 | Number of Ways to Reorder Array to Get Same BST by Padala Indira Bhavani • 0
Approach When constructing a BST: First element becomes the root. Elements smaller than root go to the left subtree. Elements …
Answer: Bank of America OA 2025 | Maximum Gap | Bucket Sort | Java Solution by Padala Indira Bhavani • 0
Approach Sorting directly would take: O(n log n) But the problem requires: O(n) Using the Pigeonhole Principle, we divid…
Answer: DXC Technology Hiring | Minimum Number of Days to Eat N Oranges | Online Assess by Padala Indira Bhavani • 0
Approach This problem can be solved using Dynamic Programming + Memoization. For any number of oranges n: Option 1: Make n divisib…
Answer: Verizon OA 2024 | Path With Minimum Effort (Dijkstra's Algorithm) | Java Solutio by Padala Indira Bhavani • 0
Approach This problem can be solved using Dijkstra's Algorithm. Key Observation Unlike the traditional shortest path problem w…
Answer: Genpact Hiring | Find the Difference of Two Arrays | HashSet | Online Assessment by Padala Indira Bhavani • 0
Approach The most efficient solution is to use HashSet. Step 1 Store all elements of nums1 in a set. set1 = {1,2,3} Store …
Answer: Johnson Controls OA 2024 | Minimum Number of Operations to Move All Balls to Eac by Padala Indira Bhavani • 0
Approach A brute-force solution would calculate the distance from every ball to every box. Time Complexity = O(n²) Since n can b…
Answer: Persistent Systems SDE-1 Off-Campus OA | Sliding Window Maximum & Greedy Refuel by Sahil Jain • 0
Solution 1 - Data Center Server Temperature Spikes Strategy For every window, we need the maximum element. A brute-force approach …
Answer: LTIMindtree SDE OA | Prefix Sum & Array Partition by Sahil Jain • 0
Solution 1 - Numeric Stream Filter Optimization Strategy The value at every position depends on the sum of all previous elements. …
Answer: Amdocs SDE OA | Parity Sorting, Cycle Detection & Invoice Combinations by Sahil Jain • 0
Solution 1 - Subscriber Bandwidth Data Alignment Strategy The problem requires grouping all even numbers before all odd numbers while…
Answer: Cognizant GenC Pro OA | Data Compression Sequence Evaluator & Fleet Route Alloca by Sahil Jain • 0
Solution 1 - Data Compression Sequence Evaluator Strategy A direct decompression approach is extremely dangerous because the expanded…
Answer: Zepto OA 2025 | Inventory Traversal & Delivery Pair Optimization by Sahil Jain • 0
Solution 1 - Dark Store Inventory Extraction Strategy The perimeter consists of four independent segments: Top Row Right Colu…
Answer: Groww OA 2025 Off-Campus | SIP Cost Optimization by Sahil Jain • 0
Solution 1 - Investment SIP Frequency Range Minimizer Strategy A greedy approach is not reliable because a locally optimal pass purch…
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