Flipkart
Flipkart

Software Development Engineer 2

Binary Tree Zigzag Level Order Traversal

Medium
Round 4 (DSA — in person)codingCandidate Selected

Given the root of a binary tree, return the zigzag level order traversal of its nodes' values (i.e., from left to right, then right to left for the next level and alternate between). (LeetCode 103)

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Flipkart Software Development Engineer 2 Interview Experience

The Flipkart interview process comprised five rigorous rounds spanning an Online Assessment, on-site Machine Coding, Low-Level Design review, Data Structures & Algorithms, and a System Design combined with a Hiring Manager round. Across these rounds, the evaluation covered algorithmic problem solving including Trie and Graph topics, an end-to-end in-memory Buy Now Pay Later design, deep dive into microservices patterns, and behavioral competencies. The overall difficulty was medium to hard, reflecting a thorough assessment of practical coding, design architecture, and problem-solving skills.

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Binary Tree Zigzag Level Order Traversal | Flipkart Interview Question | InterviewRecap