Diamonds On Call Senior Accountant Interview Questions and Answers

Q1. 2Sum DSA leetcode problem
Ans. 
2Sum problem involves finding two numbers in an array that add up to a specific target.
• Use a hashmap to store the difference between the target and each element in the array.

• Iterate through the array and check if the current element's complement exists in the hashmap.

• Return the indices of the two numbers that add up to the target.
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Q2. Spiral traversal of a Binary tree
Ans. 
Spiral traversal of a Binary tree involves visiting nodes level by level alternating between left to right and right to left.
• Start by pushing the root node into a queue.

• While the queue is not empty, pop a node, print its value, and push its children into the queue.

• Alternate between popping nodes from the queue and printing their values in a spiral manner.
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Q1. A problem similar to coin change problem of leetcode
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Q2. Aggressive cows problem
Ans. 
The aggressive cows problem involves finding the maximum distance between cows in a field while ensuring they are not too close to each other.
• Use binary search to find the maximum distance between cows.

• Sort the cows' positions and check if a certain distance is feasible.

• Consider the constraints of the problem such as the number of cows and the size of the field.
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Q1. Basic behavioural questions like why I am looking for a change and would I be able to handle the increased work pressure as I was shifting from MNC to a startup
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Technical round 2 questions

Q1. Education Details
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Q2. Skills, Strength
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CRUD Application using Angular

Q1. Node.js, OOPs concepts
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Q1. Advanced formulas of Excel
Ans. 
Advanced Excel formulas are complex functions used for data analysis and manipulation.
• Advanced formulas in Excel include VLOOKUP, INDEX-MATCH, SUMIFS, COUNTIFS, and IFERROR.

• These formulas are used for tasks like data lookup, conditional calculations, and summarizing data.

• For example, VLOOKUP is used to search for a value in a table and return a corresponding value from another column.
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Core HTML, CSS and JS

JS deep dive and react

Q1. Mimic Promise.all, Array.flat, OTP Component etc
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Create a hero section for website

Online test with basic questions along with c++ question

Virtual group discussion

Problem solving approach check

Q1. Case study and problem solving
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Q2. Root cause Analysis
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