Publicis Sapient Software Developer Interview Questions, Process, and Tips

It was okay but easy comparatively.

Was easy but they select very few students.

Q1. Main focus on fetching API data
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Q1. Main focus on react
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Q1. What is SOLID principles?
Ans. 
SOLID principles are a set of five design principles that help make software designs more understandable, flexible, and maintainable.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its sub...read more
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Q1. When can you join?
Ans. 
I can join within 2 weeks of receiving an offer.
• I can start within 2 weeks of receiving an offer.

• My current notice period is 2 weeks.

• I am available to start immediately.
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Good questions related to coding and performance tuning

Q1. General HR questions
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Q2. Questions about location and salary
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Round duration - 90 minutes
Round difficulty - Medium

Test was active from 28th September 8 PM till 2 AM (29th September’20). We could attempt at any time. 
1.5 Hr Duration
Two coding questions.

Q1. 
Cycle Detection in Undirected Graph Problem Statement
You are provided with an undirected graph containing 'N' vertices and 'M' edges. The vertices are numbered from 1 to 'N'. Your objective is to determi...read more
Ans. 
Detect cycles in an undirected graph.
• Use Depth First Search (DFS) to detect cycles in the graph.

• Maintain a visited array to keep track of visited vertices.

• If a visited vertex is encountered again during DFS, a cycle exists.

• Check for cycles in each connected component of the graph.

• Consider edge cases like disconnected graphs and self-loops.
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Q2. 
Number of Islands Problem Statement
You are provided with a 2-dimensional matrix having N rows and M columns, containing only 1s (land) and 0s (water). Your goal is to determine the number of islands in t...read more
Ans. 
Count the number of islands in a 2D matrix of 1s and 0s.
• Use depth-first search (DFS) to traverse the matrix and identify connected groups of 1s.

• Maintain a visited array to keep track of visited cells to avoid redundant traversal.

• Increment the island count each time a new island is encountered.

• Consider all eight possible directions for connectivity while traversing the matrix.

• Handle edge cases such as out-of-bounds indi
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Round duration - 60 minutes
Round difficulty - Medium

Online video call round on Microsoft Teams
Interviewer was very friendly.
This round is often called Domain Discussion Round.

Q1. 
Longest Repeating Substring Problem Statement
Given a string str consisting of lowercase English alphabet letters, and an integer K, you are allowed to perform at most K operations on this string. An oper...read more
Ans. 
Find the length of the longest substring consisting of repeating characters after performing K operations.
• Iterate through the string and maintain a sliding window of characters.

• Keep track of the frequency of characters in the window.

• Update the window by changing characters to maximize the length of repeating substring.

• Return the length of the longest repeating substring obtained.
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Round duration - 60 minutes
Round difficulty - Medium

One hour HR round.
Also called Core Values Interview.
The Interviewer was a senior level employee and was very friendly.