Google Insight

Pending

Software Engineer, University Graduate 2026

1-3 Years

Jul 29, 2026

⏱ 45 mins

GraphsAlgorithms

The problem was presented in a shared document.

The candidate utilized Dijkstra’s algorithm to solve the primary graph problem.

The interviewer provided a follow-up that served as an extension to the initial problem.

The candidate successfully implemented the full code and provided a detailed time complexity analysis.

Graph-based problem requiring shortest path or traversal logic.

GraphsDijkstra

⏱ 60 mins

Binary TreesBehavioral

The candidate solved the initial binary tree problem and the first follow-up within 30 minutes.

The second follow-up was significantly more difficult; the candidate did not reach the optimal solution.

The interviewer mitigated candidate anxiety by clarifying that the final follow-up was for discussion purposes only.

Behavioral questions were addressed using the STAR (Situation, Task, Action, Result) method.

Find the root of a binary tree given a set of nodes and parent-child relationships.

Binary Trees

⏱ 60 mins

StringsHash MapsBehavioral

The candidate used a hash map to group strings based on specific criteria.

The candidate performed a dry run on test cases three times to ensure correctness.

The interviewer probed for alternative approaches and optimization possibilities.

The candidate correctly identified that the time complexity could not be improved beyond O(N) for the given constraints.

Group strings based on specific criteria.

StringsHash Maps

Do not panic if a follow-up question is difficult; focus on communicating the thought process.
Acknowledge when an optimization is not possible if the current complexity is already optimal.
Be prepared for a lengthy post-interview waiting period.

Maintain a high volume of practice on platforms like LeetCode (600+ problems).
Engage in competitive programming (Codeforces, CodeChef) to build problem-solving speed.
Prepare behavioral responses using the STAR method.
Practice dry-running code on test cases to ensure robustness.