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Google techie reveals 7 must-know topics to clear screening round: 'I got rejected twice...'

A Google engineer shared key topics for the screening round, stressing its importance.

Published on: Mar 18, 2025, 17:53:07 IST
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A Hyderabad-based Google techie has highlighted seven crucial topics for candidates preparing for the tech giant’s screening round. Her advice, shared in a now-viral post on X (formerly Twitter), has caught the attention of aspiring engineers.

A Google engineer revealed must-know topics for the screening round. (LinkedIn/Anu Sharma)
A Google engineer revealed must-know topics for the screening round. (LinkedIn/Anu Sharma)

(Also read: Bengaluru techie calls out ‘Google influencer behaviour’ of employees who ‘have free lunch, make videos’)

"Clearing this stage should be your priority"

The woman named Anu Sharma candidly revealed that she had faced rejection twice in the screening round, emphasising the importance of mastering these topics. "I got rejected here twice because most eliminations happen at this stage, so clearing it should be your priority," she wrote.

In her post, Sharma urged candidates to focus on the following areas:

Arrays: Sliding window, two pointers, binary search, sorting, greedy algorithms

Strings: Palindromes, pattern matching

Stacks and queues: Next greater/smaller element, BFS, flood fill

Trees: Binary trees, BSTs, traversals

Graphs: DFS, BFS, Dijkstra's, MST (Prim's/Kruskal's), DSU

Heaps: Min/max heap, Kth smallest/largest element

Recursion and backtracking (very very important): Permutations and combinations

She further advised against spending time on less frequently asked topics. "Don't waste time on topics like segment trees and tries, as they are rarely asked in this round. Instead, practice time and space complexities for the data structures and algorithms you use," Sharma added.

Take a look here at the post:

Mixed reactions

Her post sparked discussions among users, with many appreciating her insights while others shared their own experiences. One user commented, "Google screening might be just a very small hurdle. I would recommend diving deeper. Leetcoding is not the only option now. Big tech companies ask practical-based questions. I reached Google’s final rounds, and the questions were real brain-crackers!"

Another user expressed gratitude, saying, "Great help. Thanks for sharing, Anu!" Meanwhile, some were curious about the nature of Google's screening questions. "They don’t directly ask questions about algorithms, right? I know most of these, but I don’t always remember their names," one person noted.

A user called Sharma’s list the “golden topics in DSA”, while another appreciated her willingness to share insights. "I appreciate you sharing this; your experience says it all! Learning from someone with such insights is truly valuable."

(Also read: Bengaluru techie calls out ‘Google influencer behaviour’ of employees who ‘have free lunch, make videos’)

However, not everyone agreed entirely with Sharma’s list. One user recalled, "In the Google screening, I was once asked a question about tries itself. Not sure if we can narrow it down to just these topics."

  • Mahipal Singh Chouhan
    ABOUT THE AUTHOR
    Mahipal Singh Chouhan

    Mahipal Singh Chouhan is a Senior Content Producer at Hindustan Times Digital, with nearly five years of experience in digital journalism and content production. His work primarily focuses on offbeat and trending stories that reflect everyday experiences and evolving conversations on the internet. He has consistently worked on transforming viral content and human interest stories into structured news pieces that engage readers while maintaining editorial clarity. At Hindustan Times, Mahipal contributes to identifying and developing stories emerging from social media trends, online communities, and real-world incidents that capture public attention. His approach involves adding context and journalistic perspective to fast-moving digital narratives, helping present viral moments in a clear and reader-friendly format suited for digital audiences. Before joining Hindustan Times Digital, he was associated with DNA India, where he gained experience in newsroom workflows and digital storytelling practices. Mahipal holds a degree in Journalism and Mass Communication from the Vivekananda Institute of Professional Studies, Delhi. He is particularly interested in tracking emerging trends and understanding how online conversations evolve into broader public discussions. His work reflects a focus on accuracy, readability, and relevance in the rapidly changing digital news environment. Outside of his professional responsibilities, Mahipal takes an interest in history and sports and regularly works on improving his general knowledge, which complements his curiosity as a media professional.Read More

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