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Answer: MICRON TECHNOLOGY OnCampus OA 2022 | Maximum Width of Binary Tree | BFS Level Or by Padala Indira Bhavani • 0
Approach To calculate the width correctly, we assign each node an index as if the tree were stored in an array representation of a compl…
Answer: ABB Off Campus hiring OA 2022 | Minimum Operations to Reduce X to Zero | Sliding by Padala Indira Bhavani • 0
Approach Instead of directly removing elements from both ends, think in reverse. If we remove elements whose sum equals x, the remain…
Answer: ERICSSON On Campus OA 2022 | Number of Subarrays With Sum Equals K (Exact) | Pre by Padala Indira Bhavani • 0
Approach A brute-force solution would generate all possible subarrays and calculate their sums. This would take O(n²) time, whic…
Answer: HONEYWELL | Online Assessment Questions 2022 | Implement Trie (Prefix Tree) by Padala Indira Bhavani • 0
Approach A Trie stores characters in a tree-like structure. Key Idea Each node represents a character. Every path from root t…
Answer: BOSCH On Campus OA 2021 | Car Fleet | Greedy and Sorting by Padala Indira Bhavani • 0
Approach The key observation is that cars closer to the destination should be processed first. For each car, calculate the time requi…
Answer: SIEMENS Hiring | Off Campus OA (2021) | Minimum Path Sum in Triangle by Padala Indira Bhavani • 0
Approach This is a classic Dynamic Programming problem. Instead of finding the minimum path from top to bottom, we work bottom-up. …
Answer: QUALYS Hiring | On Campus OA (2021) | Minimum Remove to Make Valid Parentheses by Padala Indira Bhavani • 0
Approach We need to remove the minimum number of invalid parentheses while preserving the order of characters. Use a stack to keep tr…
Answer: CISCO Hiring | Network Delay Time | On campus OA Question 2021 by Padala Indira Bhavani • 0
Approach This problem asks for the shortest time from source node k to every other node in a directed weighted graph. Since all edge …
Answer: Informatica Hiring | Minimum Time to Collect All Apples in a Tree | DFS | Off Ca by Padala Indira Bhavani • 0
Approach This is a tree traversal problem that can be solved efficiently using Depth First Search (DFS). Key Observation For every…
Answer: Societe Generale OA 2024 | Maximum Frequency Stack | Design Data Structure by Padala Indira Bhavani • 0
Approach We need to efficiently: Track the frequency of each value. Retrieve the most frequent value. Resolve ties based on re…
Answer: Mphasis Hiring OA Question | Find All Anagrams in a String | Sliding Window | of by Padala Indira Bhavani • 0
Approach Since anagrams contain the same frequency of characters, we can use a Sliding Window of length p.length(). Key Idea St…
Answer: Swiggy SDE-1 OA 2025 | Instamart Conveyor Packing Line Optimization & On-Demand by Sahil Jain • 0
Solution 1 - Instamart Conveyor Packing Line Optimization Strategy Since all item weights are strictly positive, both the running wei…
Answer: Zensar Technologies OA 2024 Partition Array for Maximum Sum | Dynamic Programmi by Padala Indira Bhavani • 0
Approach This is a Dynamic Programming problem. Let: dp[i] represent the maximum sum obtainable using the first i elements. …
Answer: Nykaa SDE-1 OA 2026 | Flash-Sale Order Dispatch Batching & Supply Chain Saturate by Sahil Jain • 0
Solution 1 - Flash-Sale Order Dispatch Batching Strategy Since all order values are strictly positive, both the running order-value s…
Answer: L&T Technology Services OA 2024 | Maximum Number of Weeks You Can Work | Greedy by Padala Indira Bhavani • 0
Approach The key observation is that the project with the maximum number of tasks determines whether all tasks can be completed. Let:…

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