Colruyt Group Associate Software Engineer Interview Questions and Answers

Round duration - 120 Minutes
Round difficulty - Easy

Q1. 
Check Word Presence in String
Given a string S and a list wordList containing N distinct words, determine if each word in wordList is present in S. Return a boolean array where the value at index 'i' indi...read more
Ans. 
Given a string and a list of words, determine if each word in the list is present in the string and return a boolean array indicating their presence.
• Iterate through each word in the word list and check if it is present in the string.

• Use a boolean array to store the presence of each word in the string.

• Consider case sensitivity when checking for word presence.

• Do not use built-in string-matching methods.

• Return the boolean
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Round duration - 20 Minutes
Round difficulty - Easy

1 hr test with mcq and coding snippet

Q1. What are pointers in c?
Ans. 
Pointers are variables that store memory addresses of other variables in C programming language.
• Pointers are used to manipulate data structures like arrays, linked lists, and trees.

• They can be used to pass values by reference to functions.

• Pointers can also be used to allocate memory dynamically using functions like malloc() and calloc().
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Q2. Write a linked list program.
Ans. 
A linked list program is a data structure that stores a sequence of elements with pointers to the next element.
• Create a Node class with a value and a next pointer

• Create a LinkedList class with a head pointer and methods to add, remove, and traverse nodes

• Example: LinkedList ll = new LinkedList(); ll.add(5); ll.add(10); ll.remove(5);
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Q3. Applications of data structures
Ans. 
Data structures are used to organize and manipulate data efficiently in various applications.
• Data structures are used in databases to store and retrieve data quickly.

• In computer graphics, data structures are used to represent geometric objects.

• Data structures are used in algorithms such as sorting and searching.

• In networking, data structures are used to represent network packets and routing tables.

• Data structures are u...read more
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Q4. Algorithm for merge sort
Ans. 
Merge sort is a divide and conquer algorithm that recursively divides the input array into two halves, sorts them and then merges them.
• Divide the array into two halves

• Recursively sort the two halves

• Merge the sorted halves

• Repeat until the entire array is sorted
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Q5. Cloud computing application in real world in project
Ans. 
Cloud computing is widely used in various industries for data storage, processing, and analysis.
• Cloud computing allows for easy scalability and cost-effectiveness in managing large amounts of data.

• Real-time collaboration and access to data from anywhere are some of the benefits of cloud computing.

• Examples of cloud computing applications in real-world projects include Amazon Web Services (AWS), Microsoft Azure, and Goog...read more
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Q6. Java and nodejs questions
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2 c++ coding questions will be asked based on the STL and array operations

Q1. Project manager will ask you project related knowledge.
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Q1. Will discuss basic HR round questions and discuss salary.
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Q1. What is java? What is variable?
Ans. 
Java is a popular programming language used for developing various applications. A variable is a named memory location used to store data.
• Java is an object-oriented language

• It is platform-independent

• Variables in Java have a specific data type

• Variables can be assigned values and their values can be changed

• Example: int age = 25; String name = "John";
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Q2. What is inheritance? types of inheritance
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows code reuse and promotes code organization.

• There are different types of inheritance: single inheritance, multiple inheritance, multilevel inheritance, and hierarchical inheritance.

• Single inheritance involves a class inheriting from a single base class.

• Multiple inheritance involves...read more
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Q3. 1.Java is a high level language 2.java is a programme is called a set of instructions 3.java run time environment (jre) 4.java is a platform independent. Variable: A variable which is container that some d...read more
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Q4. Inheritance; 1.Acquring the properties of parent class to the child class with out changeing the properties of parent class is known as inheritance 2.inheritanc is a is relationship 3.extends keyword is us...read more
Ans. 
Inheritance is acquiring properties of parent class to child class without changing parent class properties. It is classified into 5 types.
• Inheritance is a way to reuse code and establish a relationship between classes

• The 'extends' keyword is used to implement inheritance in Java

• Examples of inheritance include a 'Car' class inheriting properties from a 'Vehicle' class

• Single level inheritance involves one parent class a...read more
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May I about you ? Which your qualification and which stream