Darwinbox Intern Interview Questions and Answers

Q1. Excel realated questions and answers
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Q2. Vlookup working formula
Ans. 
Vlookup is a function in Excel used to search for a value in a table and return a corresponding value.
• Syntax: =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup])

• lookup_value: The value to search for in the first column of the table.

• table_array: The range of cells that contains the data.

• col_index_num: The column number in the table from which to retrieve the value.

• range_lookup: Optional. TRUE for approxim...read more
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Q3. H lookup formula
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HLOOKUP is a function in Excel used to search for a value in the top row of a table and return a value in the same column from a specified row.
• HLOOKUP stands for Horizontal Lookup.

• It is used to search for a value in the top row of a table and return a value in the same column from a specified row.

• Syntax: =HLOOKUP(lookup_value, table_array, row_index_num, [range_lookup])

• Example: =HLOOKUP(123, A1:D4, 3, FALSE) will searc...read more
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Assignment 1 ,3 and 3

Payroll realated questions and answers

Focused more on Logics and DSA

Q1. Just with Formal Questions
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Q1. Based on profile and Job description
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Round duration - 120 Minutes
Round difficulty - Easy

Q1. 
Rectangle Area Calculation
Given a list of rectangles, where each rectangle is represented by an array of four integers indicating its bottom-left and top-right corners, calculate the total area covered b...read more
Ans. 
Calculate total area covered by a list of rectangles on a plane.
• Iterate through each rectangle and calculate its area

• Check for overlapping areas between rectangles

• Sum up the total area covered by all rectangles
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Round duration - 60 Minutes
Round difficulty - Medium

Oops concepts and 1 DSA problem

Q1. 
Bit Set Problem Statement
You are provided with a string, termed as DIGIT_PATTERN, which consists solely of digits. The objective is to identify the first digit that repeats in the sequence. If there's no...read more
Ans. 
Identify the first repeating digit in a given string of digits.
• Iterate through the string and keep track of seen digits using a set.

• Return the first digit that repeats, or -1 if no digit repeats.

• Time complexity: O(n), where n is the length of the input string.
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Round duration - 60 Minutes
Round difficulty - Medium

Firstly Some general questions and then suddenly a cosing question with modifications

Q1. 
Print All Permutations of a String
Given an input string STR, generate and print all possible permutations of the string.
Input:
str
Output:
All permutations of the input string, each on a new line.
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Ans. 
Generate and print all possible permutations of a given input string.
• Use recursion to generate all permutations by swapping characters in the string.

• Maintain a visited array to keep track of characters already used in a particular permutation.

• Print each permutation as it is generated.

• Handle duplicate characters by skipping swapping if the character is already in the current position.
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Q1. The interviewer asked Basic SQL and Linux OS-related questions.
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Q1. The interviewer asked questions regarding projects and experience.
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Q2. The interviewer asked some aptitude and logical reasoning questions.
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Q1. Salary negotiations.
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