Ixigo.com Java Developer Interview Questions and Answers

Find out no of occurrence of character and spaces in given string

Q1. Design a minimum stack that supports the following operations: push, pop, top, and retrieving the minimum element in constant time.
Ans. 
Design a stack that supports push, pop, top, and retrieving minimum element in constant time.
• Use two stacks - one to store the actual elements and another to store the minimum values encountered so far

• When pushing an element, check if it is smaller than the current minimum and if so, push it to the minimum stack

• When popping an element, check if it is the current minimum and if so, pop from the minimum stack as well

• Top ...read more
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Q2. Given an integer array of size n, find the maximum circular subarray sum. A circular array means that the end of the array connects back to the beginning. The solution should consider both the non-circular...read more
Ans. 
Find the maximum circular subarray sum in an integer array.
• Calculate the non-circular maximum subarray sum using Kadane's algorithm.

• Calculate the circular maximum subarray sum by subtracting the minimum subarray sum from the total sum.

• Compare the non-circular and circular maximum subarray sums to get the overall maximum sum.
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1.30
Basic profit/loss,percentages questions

Q1. 1 hr Asked about closures, hoisting, map, hash
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Q2. Closures and scopes
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Q3. Dsa 2 sum problem
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Q4. Projects and basicjs
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Q1. Basic related to location, timings
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The interview was very easy, consisting only of logical questions, along with two basic Java and SQL questions where we needed to provide the output.

The questions included were fairly straightforward, focusing on arrays and SQL, such as finding the maximum element in an array and sorting an array.

Q1. Personal questions and oops questions
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Find out no of occurrence of character and spaces in given string

Q1. Dsa question was there medium level
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Basic dsa, output based questions

Q1. Discussion around projects and tech stack
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Basic javascript questions.