Springworks Interview Questions, Process, and Tips

Round duration - 150 minutes
Round difficulty - Easy

You can give the test any time. Environment was not very well. Questions were not well explained.

Q1. 
Divide String Problem Statement
You are given a string WORD consisting of lowercase alphabets. Your task is to divide WORD into N strings of equal length.
Input:
The first line contains an integer 'T' r...read more
Ans. 
Divide a given string into N equal parts and return the divided strings as an array of strings.
• Calculate the length of each part by dividing the length of the string by N.

• Iterate through the string and extract substrings of the calculated length.

• Return the array of divided strings.

• Handle cases where it is not possible to divide the string into N equal parts.
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Q2. 
Paint House Problem Statement
You have been given a set of 'N' houses, each house can be painted using one of three colors: green, red, or yellow. A cost matrix is provided with dimensions 'N' * 3, where ...read more
Ans. 
Find the minimum total cost to paint all houses such that no two adjacent houses have the same color.
• Use dynamic programming to keep track of the minimum cost of painting each house with each color while ensuring no two adjacent houses have the same color.

• At each house, calculate the minimum cost of painting it with each color based on the previous house's colors.

• Keep updating the minimum cost for each color at each ho...read more
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Round duration - 150 minutes
Round difficulty - Easy

You can give the test any time. Environment was not very well. Questions were not well explained.

Q1. 
Internet Address Problem
You are given the task of reconstructing the address of an Internet resource from a given format.
Explanation:
The address format is: <protocol>://<domain>.ru[/<c...read more
Ans. 
Reconstruct Internet addresses from given format by extracting protocol, domain, and context if present.
• Parse the input string to extract protocol, domain, and context if present

• Check if context is present to determine the number of '/' characters in the reconstructed address

• Construct the reconstructed Internet address based on the extracted information
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Q2. 
M-Coloring Problem Statement
Given an undirected graph as an adjacency matrix and an integer M, determine whether you can color the vertices of the graph using at most M colors such that no two adjacent v...read more
Ans. 
Given an undirected graph and an integer M, determine if the vertices can be colored using at most M colors without adjacent vertices sharing the same color.
• Use graph coloring algorithm to check if the graph can be colored using at most M colors.

• Check if any adjacent vertices have the same color.

• Return 'YES' if coloring is possible with at most M colors, else 'NO'.
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Q3. 
Painting Fences Problem Statement
You are given ‘N’ fences. Your task is to compute the total number of ways to paint these fences using only 2 colors, such that no more than 2 adjacent fences have the sa...read more
Ans. 
Compute total ways to paint N fences using 2 colors with no more than 2 adjacent fences having the same color.
• Use dynamic programming to solve the problem efficiently.

• At each step, calculate the number of ways to paint the current fence based on the previous two fences.

• Keep track of the count of ways to paint the fences modulo 10^9 + 7.

• Return the final count as the answer.
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