Snapchat vs Expedia: Interview Question Comparison

When preparing for technical interviews, company-specific question patterns reveal what skills are truly tested. Snapchat (Snap) and Expedia represent two distinct profiles in terms of question volume, difficulty, and focus. Understanding these differences allows you to allocate your study time strategically, focusing on the patterns that will yield the highest return during your interview preparation.

Question Volume and Difficulty

The data shows a significant disparity in both the number of questions and their difficulty distribution.

Snapchat has a larger, more challenging question bank with 99 questions. The difficulty breakdown is 99 questions categorized as Easy (E6), Medium (M62), and Hard (H31). This indicates a heavy emphasis on complex problem-solving, with nearly one-third of the questions being Hard. Preparing for Snap requires comfort with intricate algorithms and optimized solutions under pressure.

Expedia has a smaller, more moderate question bank of 54 questions. The breakdown is E13, M35, H6. The focus is overwhelmingly on Medium-difficulty problems, with only a minimal number of Hard questions. This suggests Expedia's interviews test strong foundational knowledge and practical coding skill more than mastery of the most advanced algorithmic puzzles.

In short, Snapchat's interview is a high-stakes depth test, while Expedia's is a breadth test of core competencies.

Topic Overlap

Both companies heavily test fundamental data structures, but with different secondary emphases.

Common Ground (Array, String, Hash Table): These are the absolute essentials for both. You must be proficient in manipulating arrays and strings, and using hash tables (dictionaries/maps) for efficient lookups and state management. Problems often combine these, like finding a substring with specific character counts.

# Example: Two Sum (Common Hash Table problem)
def two_sum(nums, target):
    seen = {}
    for i, num in enumerate(nums):
        complement = target - num
        if complement in seen:
            return [seen[complement], i]
        seen[num] = i
    return []

# Usage: two_sum([2, 7, 11, 15], 9) -> [0, 1]

Diverging Focus:

• Snapchat's Unique Focus: Breadth-First Search. The inclusion of BFS points to a strong emphasis on graph and tree traversal problems. These often model real-world networks or hierarchical data, requiring you to find shortest paths or levels of connection.
• Expedia's Unique Focus: Greedy Algorithms. The Greedy topic suggests problems involving optimization, scheduling, or making the locally optimal choice at each step. This aligns with business logic for travel itineraries, resource allocation, or cost minimization.

Which to Prepare for First

Your choice depends on your interview timeline and target role.

Prepare for Expedia first if: You are early in your interview preparation cycle or prioritizing confidence-building. The smaller question count and dominance of Medium problems make it an achievable first milestone. Mastering the core Array, String, and Hash Table patterns for Expedia will build a solid foundation that is directly transferable to almost any other company, including Snapchat. You can then layer on more advanced topics.

Prepare for Snapchat first if: You are already strong on fundamentals and are specifically targeting a role at Snap or a similar top-tier tech company. The large volume and high difficulty require a longer, more dedicated study period. Tackling it first ensures you have enough time to grind through the Hard problems and complex graph-based BFS questions. Success here will make Expedia's question bank feel relatively manageable.

Ultimately, a strong candidate for either company will have mastered the common core. Start with that foundation, then branch out into BFS depth for Snap or Greedy patterns for Expedia based on your target.

For focused practice, visit the company pages: Snapchat Interview Questions | Expedia Interview Questions