Snapchat vs Wix: Interview Question Comparison

When preparing for technical interviews at different companies, understanding their specific question patterns, difficulty distributions, and favored topics is crucial for efficient study. Snapchat and Wix, while both assessing core data structures and algorithms, present distinct profiles in their coding interview question banks. This comparison analyzes their volume, difficulty, and topic focus to help you tailor your preparation strategy.

Question Volume and Difficulty

The most immediate difference is the sheer scale of their question banks. Snapchat's list is significantly larger and more challenging, with 99 questions categorized as 99 Easy, 62 Medium, and 31 Hard. This suggests a rigorous, comprehensive interview process that tests a wide range of problem-solving skills, with a strong emphasis on medium-difficulty problems. In contrast, Wix's list is more compact at 56 questions, with a distribution of 16 Easy, 31 Medium, and 9 Hard. This indicates a more focused interview, still centered on medium-difficulty questions but with a lower overall intensity and a notably smaller proportion of hard problems.

Key Takeaway: Preparing for Snapchat requires grinding through a larger volume of problems, with particular attention to mastering medium and hard-level scenarios. Wix preparation can be more targeted, with mastery of medium-difficulty problems being the primary goal.

Topic Overlap

Both companies heavily test foundational data structures. Array, String, and Hash Table problems are central to both question banks, forming the bedrock of their interviews. You must be proficient in manipulating these structures.

The primary algorithmic divergence lies in graph traversal:

• Snapchat shows a marked preference for Breadth-First Search (BFS). This aligns with problems involving shortest paths, level-order traversal, or exploration that radiates outward from a point (e.g., social network degrees, rotting oranges).
• Wix lists a focus on Depth-First Search (DFS). This is typical for problems involving exhaustive exploration, backtracking, or traversing all possible paths (e.g., maze solving, permutation generation, tree path sums).

Here is a simple example highlighting the BFS vs. DFS difference in a "clone graph" scenario:

# BFS approach (common for Snapchat-style level-wise processing)
from collections import deque
def cloneGraphBFS(node):
    if not node:
        return None
    clone_map = {}
    queue = deque([node])
    clone_map[node] = Node(node.val)
    while queue:
        curr = queue.popleft()
        for neighbor in curr.neighbors:
            if neighbor not in clone_map:
                clone_map[neighbor] = Node(neighbor.val)
                queue.append(neighbor)
            clone_map[curr].neighbors.append(clone_map[neighbor])
    return clone_map[node]

# DFS approach (common for Wix-style recursive exploration)
def cloneGraphDFS(node):
    clone_map = {}
    def dfs(original):
        if original in clone_map:
            return clone_map[original]
        clone = Node(original.val)
        clone_map[original] = clone
        for neighbor in original.neighbors:
            clone.neighbors.append(dfs(neighbor))
        return clone
    return dfs(node) if node else None

Which to Prepare for First

Your preparation order should be dictated by your interview timeline and the principle of building from a solid foundation.

Prepare for Wix first if: You are interviewing with both, or you are early in your general interview prep. The smaller, moderately difficult question bank allows you to efficiently solidify core competency in Arrays, Strings, Hash Tables, and DFS. This creates a strong base. Mastering Wix's list is an achievable milestone that builds confidence.

Prepare for Snapchat first if: It is your only or primary target, or your interview is sooner. You must allocate significantly more time. Start by mastering the common topics (Array, String, Hash Table), then drill deeply into BFS patterns and medium-to-hard problem variations. The volume demands an early and sustained effort.

In either sequence, begin with the shared foundational topics. Then, branch your drill into company-specific traversal patterns: practice transforming DFS solutions into BFS for Snapchat, and ensure your recursive backtracking is sharp for Wix.

For focused practice, visit the Snapchat question list at /company/snapchat and the Wix question list at /company/wix.