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Find the missing number in an array containing numbers from 1 to n.
Iterate through the array and calculate the sum of all numbers from 1 to n.
Calculate the sum of all numbers in the given array.
Subtract the sum of array from the sum of all numbers to find the missing number.
posted on 7 Apr 2025
I appeared for an interview before Apr 2024, where I was asked the following questions.
I applied via Campus Placement and was interviewed in Apr 2024. There were 2 interview rounds.
45 min , 45 questions
I applied via Referral and was interviewed in Dec 2023. There were 2 interview rounds.
Aptitude test consists of DSA questions and theory questions on Java, SQL and object oriented programming
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
OOP focuses on creating objects that interact with each other to solve problems
Encapsulation, inheritance, and polymorphism are key principles of OOP
Classes and objects are used to create reusable code and organize data
Example: In a banking system, a 'Customer' object may have attributes like name and ...
Design principles are fundamental concepts used to guide the process of designing products or systems.
Design principles help ensure consistency, usability, and aesthetic appeal in the final product.
They often include principles such as simplicity, consistency, hierarchy, balance, and emphasis.
For example, the principle of simplicity in design aims to eliminate unnecessary elements and focus on the essential features.
Co...
EarlySalary Services interview questions for popular designations
I applied via Walk-in and was interviewed in Apr 2024. There was 1 interview round.
A collection is a group of items or objects gathered together for a specific purpose or to be displayed.
A collection can consist of various items such as stamps, coins, artwork, or books.
Collections are often curated and organized by individuals based on personal interests or hobbies.
Some collections may have significant monetary or sentimental value.
Collections can also refer to the act of gathering or accumulating it
Finance services refer to the range of services provided by financial institutions to help individuals and businesses manage their money, investments, and assets.
Finance services include banking, investment management, insurance, and financial planning.
Banks offer services such as savings accounts, loans, and credit cards.
Investment management services help individuals and businesses grow their wealth through investmen...
I applied via Internshala and was interviewed in May 2021. There were 4 interview rounds.
Top trending discussions
I applied via Naukri.com and was interviewed before Aug 2021. There were 2 interview rounds.
Asking about the excel and other data tool. Salary offer as per their terms no negotiate.
I applied via LinkedIn and was interviewed before Oct 2023. There were 2 interview rounds.
SQL - technical round
Case Study round - 2
Medium Leetcode, Array, String, Tree, DP
I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
INNER JOIN returns rows when there is at least one match in both tables
LEFT JOIN returns all rows from the left table and the matched rows from the right table
RIGHT JOIN returns all rows from the right table and the matched rows from the left table
FU...
Window functions are used to perform calculations across a set of table rows related to the current row.
Window functions are used in SQL to perform calculations on a set of rows related to the current row.
They allow you to perform calculations like ranking, moving averages, and cumulative sums.
Examples of window functions include ROW_NUMBER(), RANK(), and SUM() OVER().
The duration of EarlySalary Services interview process can vary, but typically it takes about less than 2 weeks to complete.
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