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Recent Replies
Answer: BOEING Hiring Question | Number of Provinces | On-Campus OA (2021) Number of Pr by Padala Indira Bhavani • 0
Approach Initially, every city is its own province. Use Disjoint Set Union (Union-Find) to merge connected cities. Whenever two d…
Answer: 4. ABB INDIA Hiring | Off-Campus OA (2025) | Count Symmetric Integers by Padala Indira Bhavani • 0
Approach Traverse every number from low to high. Ignore numbers with an odd number of digits. Split the digits into two halves. …
Answer: LEGRAND Hiring | Campus Interview Question | On-Campus OA (2025) by Padala Indira Bhavani • 0
Approach The string is valid if it never contains the substring "ba". If "ba" exists, then an 'a' appea…
Answer: YOKOGAWA Hiring Challenge | Online Assessment Question | Off-Campus (2025) by Padala Indira Bhavani • 0
Approach Always increment the smallest element to maximize the final product. Store all elements in a Min Heap. Repeat k times: …
Answer: DANFOSS Hiring | On-Campus OA (2025) | Find Subarrays With Equal Sum by Padala Indira Bhavani • 0
Approach Traverse the array and calculate the sum of every consecutive pair. Store each sum in a HashSet. If a sum already exists…
Answer: Wipro OA Question 2024 September | Trees & BFS | on-campus by Pravardhan Aare • 0
Solution: Maximum Width of Binary Tree — BFS with Node Indexing Approach We use BFS with position indexing. We assign each node…
Answer: Thoughtworks OA Question 2024 August | DP | on-campus by Pravardhan Aare • 0
Solution: Longest Increasing Subsequence — Binary Search + Patience Sort Approach The classic O(N²) DP works but we can ac…
Answer: MongoDB OA Question 2024 July | Intervals | on-campus by Pravardhan Aare • 0
Solution: Insert Interval — Three Phase Linear Scan Approach We make a single linear pass through the existing intervals, handl…
Answer: Splunk OA Question 2024 June | Trees & BFS | on-campus by Pravardhan Aare • 0
Solution: Binary Tree Right Side View — BFS Level Order Approach We use BFS Level Order Traversal. At each level, we process al…
Answer: Alto Networks OA Question 2024 May | Binary Search | on-campus by Pravardhan Aare • 0
Solution: Find Peak Element — Binary Search on Slope Approach We use Binary Search exploiting the fact that a peak always exist…
Answer: Databricks OA Question 2024 September | Dynamic Programming | on-campus by Pravardhan Aare • 0
Solution: Unique Paths — Space Optimized 1D DP Approach We use Dynamic Programming. The number of ways to reach any cell (i, j)…
Answer: Square OA Question 2024 August | Linked List | on-campus by Pravardhan Aare • 0
Solution: Add Two Numbers — Elementary Math Simulation Approach We simulate grade school addition digit by digit, managing a ca…
Answer: Okta OA Question 2024 July | Trees | on-campus by Pravardhan Aare • 0
Solution: Validate Binary Search Tree — DFS with Min/Max Bounds Approach A common mistake is to only compare a node with its di…
Answer: eBay OA Question 2024 June | Heap & Sorting | on-campus by Pravardhan Aare • 0
Solution: Top K Frequent Elements — Bucket Sort (O(N)) Approach We use Bucket Sort for an optimal O(N) solution. The key insigh…
Answer: Instacart OA Question 2024 May | Strings & DP | on-campus by Pravardhan Aare • 0
Solution: Longest Palindromic Substring — Expand Around Center Approach We use the Expand Around Center technique. Every palind…
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