Snap Software Engineer Interview Questions

The interview started with around 10–15 minutes of background discussion, where the interviewer asked about my experience — especially around backend systems and ML-related work. After that, we moved

**Problem Statement** Implement Java's `Math.sin(x)` function using the Taylor Series expansion: $$x - \frac{x^3}{3!} + \frac{x^5}{5!} - \frac{x^7}{7!} \dots$$ **Challenges** 1. **Termination:** The T

**Problem Statement** You are given an array `rooms` where each element represents the capacity of a meeting room, and an integer `k` representing the number of people. The goal is to distribute all `

Hi, I had a phone screen with snap today. Here is the question i was asked. Image region with sum Write code which determines whether the sum of all elements in a...

Connect Pairs (from hacker rank) Input : [Ba, _a, cb, dc] output : _abcd Input : [El, ll, lo, _h, he] output : hello condition : the resultant string should begin with In...

Interviewed with Snapchat a few days ago Phone Interview: Given a list of strings find if the word is prefix of any word Example: [\'world\', \'word\', \'would\', \'wont\', \'which\', \'hello\'] prefix : \'wo\' I started...

Given a mxn Binary matrix print the shortest path from start to end. Start can be any point in the first row and end can be any point in the...

One of the strangest experiences I\'ve had. Maybe I dogged a bullet. The interviewer was nice and helpful. It started with a behavioral question. Tell me about a time you had a disagreement...

How to system design a messenger with this feature? Auto delete/vanish of message/Photo after read

Given an R x C grid of letters "P", "F", and ".", you have one person "P" and his friends "F". The person will go visit all his friends and can...

Phone interview \t\tWhy snap? \t\tGiven grid of Babies and Toys, place Nanny at optimal distance from all babies \t\tBest Meeting Point - LeetCode 1. Manager round \tValue based questions \tDesign chess, discuss entities and modelling...

Question - Design a class/method AddAndGetTopK to add a number and get top K frequent elements. Eg - k = 3 4 4,5 4,5,4 => 4,5 4,5,4,6 => 4,5,6 4,5,4,6,5 => 4,5,6 4,5,4,6,5,7 => 4,5,6 4,5,4,6,5,7,7 => 4,5,7 I...

Behavioral: - Why Snap? - Talk about a past mistake Coding: https://leetcode.com/problems/palindrome-linked-list/ However, the ListNode was generic but based on the question requirement I used integer as value of each node. After clarifying questions, I explaned...

Status: 4 YOE Position: L4 SDE at Amazon Location: LA, CA Date: September 2021 Technical phone screen (1 hour): \t https://leetcode.com/problems/combination-sum/ \t* Follow-ups: \t\t https://leetcode.com/problems/combination-sum-ii/ \t\t https://leetcode.com/problems/combination-sum-iii/ * Virtual Onsite: \t Coding: \t\t https://leetcode.com/problems/letter-combinations-of-a-phone-number/ \t\t* https://leetcode.com/problems/decode-ways/ \t* Behavioral \t*...

Interviewed with Snapchat a few months ago Phone Interview: Given a list of strings and a regex like string return all strings that match Example: [\'world\', \'word\', \'would\', \'wont\', \'which\', \'hello\'] \'w3d\' Would return \'world\' and...

Three columns inside log file generated by single thread CPU, assuming input is Entry(String jobName, boolean start, int timeStamp), output is HashMap<String, List<Interval>> write a parse function to parse log file....

We are given a list of words that have both 'simple' and 'compound' words in them. Write an algorithm that prints out a list of words without the compound words...

We obtained a log file containing runtime information about all threads and mutex locks of a user program. The log file contains N lines of triplets about threads acquiring or...

LeetCode #347: Top K Frequent Elements. Difficulty: Medium. Topics: Array, Hash Table, Divide and Conquer, Sorting, Heap (Priority Queue), Bucket Sort, Counting, Quickselect. Asked at Snap in the last 6 months.

LeetCode #200: Number of Islands. Difficulty: Medium. Topics: Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix. Asked at Snap in the last 6 months.