20+ Glencore Information Services Interview Questions and Answers

Print a triangle pattern of numbers based on given input 'N'.

• Iterate through each row and print the numbers in a centered and incremented manner

• Use nested loops to handle the alignment and incrementing of numbers

• Ensure to properly format the output with spaces for alignment

Find the longest palindromic substring in a given string, returning the rightmost one if multiple substrings are of the same length.

• Iterate through each character in the string and expand around it to find palindromic substrings

• Keep track of the longest palindromic substring found so far

• Return the rightmost longest palindromic substring

Find the second largest element in an array of integers.

• Iterate through the array to find the largest and second largest elements.

• Handle cases where all elements are identical.

• Return -1 if second largest element does not exist.

The task is to transform one string into another by swapping characters with an empty slot, using the minimum number of operations.

• Iterate through the strings character by character and count the number of operations needed to transform one string into another.

• Consider the allowed operations and their conditions while counting the operations.

• Return the total number of operations needed for each test case.

Count the 'megaprime' numbers within a given range of integers.

• Iterate through the range of integers from Left to Right.

• For each number, check if it is a prime number and if all its digits are prime.

• Increment the count if the number satisfies the conditions.

• Return the total count of 'megaprime' numbers.

The task is to determine the number of possible ways to decode a sequence of digits back into a string of characters from 'A' to 'Z'.

• Use dynamic programming to keep track of the number of ways to decode the sequence at each position.

• Consider different cases for decoding single digits and pairs of digits.

• Handle edge cases such as '0' and '00' appropriately.

• Return the final count modulo 10^9 + 7 as the answer.

Distribute N candies among K people in a specific order, incrementing by K each round until all candies are distributed.

• Distribute candies starting from 1st friend, incrementing by K each round

• If remaining candies are fewer than what a friend is supposed to receive, distribute all remaining candies to that friend

• Output the number of candies each friend ends up with at the end of distribution

Find the largest prime number in array using Segmented Sieve.

• Implement Segmented Sieve algorithm to generate prime numbers up to the maximum value in the array.

• Iterate through the array and check if each number is prime using the generated prime numbers.

• Return the largest prime number found in the array.

OOP concepts in C++ include classes, objects, inheritance, polymorphism, and encapsulation.

• Classes are user-defined data types that contain data members and member functions.

• Objects are instances of classes that can interact with each other.

• Inheritance allows a class to inherit properties and behavior from another class.

• Polymorphism enables objects to be treated as instances of their parent class.

• Encapsulation restricts access to certain components of a class, protecting data...read more

OOPs stands for Object-Oriented Programming and it is a programming paradigm based on the concept of objects.

• OOPs is based on four main concepts: Encapsulation, Inheritance, Polymorphism, and Abstraction.

• Encapsulation is the process of hiding the implementation details of an object from the outside world.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism allows objects of different classes to be treated as if they were of the same cla...read more

Program to print a given pattern using an array of strings.

• Create an array of strings to hold the pattern

• Use nested loops to iterate through the array and print the pattern

• Adjust the loops to print the desired pattern

• Example: for a right triangle pattern, use i for rows and j for columns, and print '*' if j<=i

The process is called coding and it involves assigning a unique code to something for identification or classification.

• Coding is used in various fields such as software development, medical coding, and data analysis.

• The codes assigned can be alphanumeric or numeric depending on the system used.

• Examples of coding systems include ASCII, Unicode, ICD-10, and CPT codes.

• Coding helps in organizing and managing large amounts of data efficiently.

I have a Bachelor's degree in Computer Science and 5 years of experience as a Software Developer.

• Bachelor's degree in Computer Science

• 5 years of experience as a Software Developer

Reverse a string without using pre-defined functions.

• Iterate through the string from the last character to the first.

• Create a new string and append each character to it in reverse order.

• Return the reversed string.

I am skilled in various programming languages and technologies including Java, Python, SQL, and web development frameworks.

• Proficient in Java and Python programming languages

• Experience with SQL and database management

• Familiarity with web development frameworks such as Spring and Django

• Knowledge of software development methodologies such as Agile and Scrum

Overloading is having multiple methods in the same class with the same name but different parameters. Overriding is implementing a method in a subclass that is already defined in the parent class.

• Overloading allows a class to have multiple methods with the same name but different parameters.

• Overriding involves implementing a method in a subclass that is already defined in the parent class.

• Overloading is resolved at compile time while overriding is resolved at runtime.

• Example ...read more

A Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.

• Start with two initial numbers, usually 0 and 1.

• Add the two preceding numbers to get the next number in the series.

• Repeat this process to generate the Fibonacci series.

• Example: 0, 1, 1, 2, 3, 5, 8, 13, 21, ...

Abstraction is the concept of hiding complex implementation details and showing only the necessary features of an object.

• Abstraction allows us to focus on what an object does rather than how it does it

• It helps in reducing complexity and improving efficiency

• Examples of abstraction include interfaces in Java, where only method signatures are defined without implementation details

Inheritance is a mechanism in object-oriented programming where a class inherits properties and behaviors from another class.

• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can override methods from the base class

• Example: Class Car can inherit from class Vehicle

My expected CTC is negotiable based on the responsibilities and growth opportunities offered by the role.

• My expected CTC is based on industry standards and my experience level.

• I am open to discussing the compensation package in detail during the interview process.

• I am looking for a competitive salary package with additional benefits such as bonuses or incentives.

• I am confident that my skills and experience justify a competitive compensation package.