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Answer: Cred SWE Interview Question 2021 November | Bit Manipulation | on-campus by Pravardhan Aare • 0
Solution 1: Number of 1 Bits — Brian Kernighan's Bit Trick Approach The operation n & (n-1) always clears the lowest se…
Answer: Zoho Associate Developer Interview Question 2025 February | Tries | on-campus by Pravardhan Aare • 0
Solution: Trie Node with 26-Child Array and End Flag Approach Each TrieNode contains an array of 26 children (one per lowercase lette…
Answer: Freshworks SWE Interview Question 2022 August | Arrays | on-campus by Pravardhan Aare • 0
Solution: Dutch National Flag Algorithm — Three Pointer Single Pass Approach Use three pointers — low, mid, and high &mda…
Answer: Zendesk Associate Developer Interview Question 2024 March | Arrays | on-campus by Pravardhan Aare • 0
Solution: Boyer-Moore Voting Algorithm Approach The Boyer-Moore Voting Algorithm exploits the fact that the majority element appears …
Answer: Cisco SWE Interview Question 2023 April | Trees | on-campus by Pravardhan Aare • 0
Solution: Post-Order DFS with Global Diameter Tracking Approach At every node, the longest path passing through it equals leftHeight …
Answer: Ola SWE Interview Question 2022 June | Heaps | on-campus by Pravardhan Aare • 0
Solution: Min-Heap of Size K Approach Maintain a min-heap of size exactly k that stores the k largest elements seen so far. The heap …
Answer: Grab Associate Developer Interview Question 2025 January | Sliding Window | on-c by Pravardhan Aare • 0
Solution: Sliding Window with Max Frequency Tracking Approach Use a variable-size sliding window [L, R]. The key formula is: replacem…
Answer: Expedia SWE Interview Question 2022 October | Graphs and Dijkstra | on-campus by Pravardhan Aare • 0
Solution: Dijkstra's Algorithm with Min-Heap Approach This is a single-source shortest path problem on a weighted directed graph …
Answer: Booking.com Associate Developer Interview Question 2024 May | Backtracking | on- by Pravardhan Aare • 0
Solution: Backtracking with Open and Close Count Tracking Approach Build the result string character by character using backtracking.…
Answer: Lyft SWE Interview Question 2023 August | Graphs | on-campus by Pravardhan Aare • 0
Solution: BFS with HashMap to Track Original to Clone Mapping Approach Use a HashMap that maps each original node to its cloned count…
Answer: MakeMyTrip Associate Developer Interview Question 2021 September | Trees | on-ca by Pravardhan Aare • 0
Solution: Pre-Order DFS with Running Maximum Approach Perform a pre-order DFS (process current node before children) while carrying a…
Answer: Qualcomm SWE Interview Question 2025 March | Dynamic Programming on Grids | on-c by Pravardhan Aare • 0
Solution: In-Place Bottom-Up Dynamic Programming Approach Define dp[i][j] as the minimum cost to reach cell (i, j) from (0, 0). Since…
Answer: VMware SWE Interview Question 2022 November | Linked Lists | off-campus by Pravardhan Aare • 0
Solution: Find Middle + Reverse Second Half + Merge Approach This problem decomposes cleanly into three classic linked list operation…
Answer: Intuit Associate Developer Interview Question 2023 July | Stack Design | off-cam by Pravardhan Aare • 0
Solution: Two Stacks — Main Stack and Auxiliary Min Stack Approach Maintain two stacks in parallel: the main stack holds all pu…
Answer: Swiggy SWE Interview Question 2024 September | Backtracking by Pravardhan Aare • 0
Solution: Backtracking through the Phone Keypad Tree Approach Map each digit to its corresponding letters using an array indexed by d…

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