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Celigo Interview Questions and Answers
Celigo Interview Experiences
7 interviews found
Anonymous
I appeared for an interview in Apr 2025, where I was asked the following questions.
- Q1. Need to reach from point a to point b in minimum step, constraint is in one step we can go 1 step behind or 2 step ahead.
- Q2. All components of social media application.
- Ans.
A social media application consists of various components that facilitate user interaction, content sharing, and community building.
User Profiles: Each user has a profile containing personal information, profile picture, and posts, e.g., Facebook profiles.
News Feed: A dynamic stream of updates from friends and followed accounts, showcasing posts, images, and videos, e.g., Twitter feed.
Messaging System: Enables direct c...
I appeared for an interview in Feb 2025, where I was asked the following questions.
- Q1. FACTORAL OF A NUMBER
- Ans.
Factorial of a number is the product of all positive integers up to that number, denoted as n!.
Factorial is defined as n! = n × (n-1) × (n-2) × ... × 1.
Example: 5! = 5 × 4 × 3 × 2 × 1 = 120.
Factorial of 0 is defined as 1: 0! = 1.
Factorials grow very quickly; for example, 10! = 3,628,800.
Factorials are used in permutations and combinations.
- Q2. Valid parentheses
- Q3. Remove the nth node from. Back in a ll
- Ans.
Remove the nth node from the end of a linked list efficiently.
Use two pointers: 'fast' and 'slow'.
Move 'fast' n steps ahead in the list.
Then move both 'fast' and 'slow' until 'fast' reaches the end.
At this point, 'slow' will be just before the nth node from the end.
Remove the nth node by adjusting the pointers.
- Q4. Lowest common acestor
- Ans.
Lowest Common Ancestor (LCA) is the deepest node that is an ancestor to two given nodes in a binary tree.
LCA can be found using recursion by traversing the tree from the root.
If both nodes are found in the left and right subtrees of a node, that node is the LCA.
Example: In a tree with nodes 3, 5, and 1, the LCA of 5 and 1 is 3.
For a binary search tree, LCA can be found by comparing values with the root.
Example: In a BS...
Selected
I applied via Campus Placement and was interviewed in Jun 2023. There were 4 interview rounds.
2 coding question bitmasking and dfs
(2 Questions)
- Q1. Rain water trapping leetcode question
- Q2. Hashing basis easy question from leetcode
(1 Question)
- Q1. Job schedule leetcode easy question
Selected
I applied via Campus Placement and was interviewed in Mar 2023. There were 6 interview rounds.
It was a 90 min online coding test on hackerrank platform and the questions were from DSA.
(1 Question)
- Q1. We had a discussion on few dsa problems of leetcode style.
(1 Question)
- Q1. Leetcode style DSA interview
(1 Question)
- Q1. Leetcode Style DSA round and discussion on projects.
(1 Question)
- Q1. Pure HR based questinos
I applied via LinkedIn and was interviewed in Jul 2021. There was 1 interview round.
Interview Questionnaire
4 Questions
- Q1. Divide your life into three categories and explain the challenges.
- Ans.
Life can be categorized into personal, professional, and social spheres, each presenting unique challenges and growth opportunities.
Personal Growth: Balancing self-care and personal development can be challenging, such as finding time for hobbies amidst daily responsibilities.
Professional Development: Navigating career advancement can be tough, like overcoming imposter syndrome when seeking promotions or new roles.
Soci...
- Q2. Differs from person to person
- Q3. Tell me about an start-up idea based on your region.
- Ans.
A mobile app connecting local farmers with consumers for fresh produce delivery, promoting sustainability and community support.
Direct farm-to-table delivery model, reducing food miles and carbon footprint.
Subscription service for weekly fresh produce boxes, customizable based on dietary preferences.
Partnerships with local farmers to ensure fair pricing and support for small-scale agriculture.
Incorporation of education...
- Q4. Explained them an idea I had.
Interview Preparation Tips
I applied via Recruitment Consultant and was interviewed in Nov 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Project details, questions based on the resume and they will ask to write some java programs
Interview Preparation Tips
Interview Preparation Tips
Experience: 1)There are two unsorted lists containing integers. Provide a solution to find the largest common integer in both lists (findCommonLargest(List list1, List list2)). You can use additional data structures if needed but utility methods from java collections are not allowed. There are many solutions possible for this problem; please provide the most efficient solution you can come up with and provide its running time in Big O notation
2) In a university, students can enroll in different courses.
A student may enroll for more than one course.
Both students and courses can be identified by IDs given to them. Design a data structure to store students, courses, and the student-course relationships. You can use arrays, lists, stacks, trees, graphs, etc. or come up with your own data structures.
Give the running times, in Big O notation, for the following operations for your data structure and justify the answers:
a) Return all students in a list.
b) Return all courses in a list.
c) Return all courses in a list for a given student.
d) Return all students in a list for a given course.
Round: Technical Interview
Experience: 1) Write a code to print the BFS of a binary tree, with can marker '->' after every level.
2) Given a binary tree and a number, print the all the nodes in the level that contains the node with the given number, expect the number and it's sibling.
3) Delete a node in a binary search tree.
Round: Technical Interview
Experience: 1) Write a code to reverse a link list.
2) Design a data structure to solve the scramble/jumble word problem that comes in the newspaper.
I/p: list of letters
O/p: all the valid dictionary words
eg: ogd
O/p : god, dog.
Round: HR Interview
Experience: What is the thing that you most like about your current company?
-> What is the thing that you least like about your current company?
-> Tell me about your current work exp?
-> Where do you see yourself after 5 years?
College Name: NA
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Interview questions from similar companies
I applied via Approached by Company and was interviewed before May 2021. There were 3 interview rounds.
Mathematical thinking Analytical Thinking
(1 Question)
- Q1. Career intro, Mathematics
Interview Preparation Tips
- Aptitude
- Basic mathematics
- Accounting
I appeared for an interview in Oct 2016.
Interview Questionnaire
2 Questions
- Q1. Questions related to Java Programming OOPS
- Q2. Questions related to Internships
Interview Preparation Tips
Duration: 1 hour 30 minutes
Total Questions: 90
Round: Group Discussion
Duration: 25 minutes
Skills: Programming Skills In Any Language Like C, Object Oriented Programming (OOP) Basics, Data Structures And Algorithms, Operating Systems
College Name: NIT Raipur
prashant raj
I appeared for an interview in Dec 2016.
Interview Questionnaire
7 Questions
- Q1. Questions on linked list
- Q2. Implement LRU
- Ans.
LRU (Least Recently Used) is a caching algorithm that removes the least recently used item when the cache is full.
LRU uses a combination of a doubly linked list and a hash map.
The doubly linked list keeps track of the order of recently used items.
The hash map allows for efficient lookup of items in the cache.
When a new item is accessed, it is moved to the front of the list.
If the cache is full, the item at the end of t...
- Q3. Questions on C, c++
- Q4. Questions on DBMS
- Q5. Questions on Operating Systems
- Q6. Tell all things that happen inside a system when we press 'k' on the notepad.
- Ans.
Pressing 'k' on Notepad triggers a series of events including key press event, character insertion, and potential text manipulation.
When 'k' is pressed, a key press event is triggered
The key press event is captured by the Notepad application
The character 'k' is inserted at the current cursor position
If any text is selected, it may be replaced by the character 'k'
The cursor position is updated to the next position
If aut...
- Q7. Basic HR questions
Interview Preparation Tips
Tips: Prepare Data Structure and Algorithms well
Round: Technical Interview
Tips: Have decent knowledge of technical subjects.
Skills: Programming, Data Structures, Algorithm, Operating System Basics, Knowledge About Database Managements Systems
College Name: IIT Roorkee
Skills evaluated in this interview
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