Ixigo.com Senior UI Engineer Interview Questions, Process, and Tips

Linked list, tree, queues

Q1. Merge linked list
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Q2. Minimum jump question
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Q3. Coin switch problem
Ans. 
Coin switch problem involves determining the minimum number of coin flips to make all coins face the same direction.
• Start from one end and count the number of flips needed to make all coins face the same direction

• Consider the edge cases where the first and last coins are different

• Optimize by flipping only when necessary
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Q1. Salary discussion
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45 MCQ Which includes below topics
Basic core Java
Database
Spring
Hibernate
Angular
One program based on core Java logic

Travel module related code test.

Interviewer asked two coding question medium level

Q1. I were asked to design parking lot Basically focusing on class diagram and how candidate is thinking about entities and design pattern
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Q1. This is also LLD round interviewer asked me to design book my show How freezing the seats work? In two cases if using sql or not using any database just using cache of application
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Q1. Techincal question
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Q2. Php array functions
Ans. 
PHP array functions are built-in functions in PHP that allow manipulation and handling of arrays.
• Some common PHP array functions include array_push(), array_pop(), array_merge(), array_filter(), and array_map().

• These functions can be used to add elements to an array, remove elements from an array, merge arrays, filter arrays based on a callback function, and apply a callback function to each element of an array.

• Example
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Q1. Implement LRU Cache
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LRU Cache is a data structure that stores the most recently used items and discards the least recently used items when full.
• Use a combination of a doubly linked list and a hashmap to implement LRU Cache.

• Keep track of the most recently used item at the head of the linked list and the least recently used item at the tail.

• When a new item is accessed, move it to the head of the linked list and update the hashmap.

• When the c...read more
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Q1. Based on core concepts of JavaScript and React fundamentals.
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Q1. Advance topics of React and JavaScript and easy and medium level of DS algo
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Q1. More like technical discussion on services that helps them to manage their product and problem solving if discussion not go long.
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Q1. Compensation and others formalities
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Q1. Basic js question closure, async defer and all
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Q2. Create autosuggest debounce, pollyfill
Ans. 
Autosuggest debounce is a feature that delays the search suggestions until the user stops typing, and a polyfill is a piece of code that provides functionality that is not natively supported by the browser.
• Implement a debounce function to delay the autosuggest feature until the user stops typing.

• Use a polyfill to provide support for the autosuggest feature in browsers that do not natively support it.

• Example: Implement ...read more
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Q1. A programming question
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Q2. React-native architecture and flatlist
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Q3. Kadanes algorithm
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Kadane's algorithm is used to find the maximum subarray sum in an array of integers.
• Iterate through the array and keep track of the maximum sum ending at each index.

• At each index, choose between extending the previous subarray or starting a new subarray.

• Example: For array [-2, 1, -3, 4, -1, 2, 1, -5, 4], the maximum subarray sum is 6 (from index 3 to 6).
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Q4. Scalablity, performance
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