
Infosys Limited
Hiring ClosedHiring Period: Jul 01 - Jul 31, 2025
5
Concepts
20
Challenges
About Infosys Limited
Infosys is a global leader in next-generation digital services and consulting. Founded in 1981, Infosys provides IT services in cloud, AI, big data, digital transformation, and enterprise applications. The company has clients across more than 50 countries and is recognized as one of the top Indian IT service providers worldwide. Infosys is also a pioneer in training and upskilling through its global education ecosystem.
Coding Concepts
Arrays & Strings
BeginnerLearn basic array and string manipulation like reversing, searching, sorting, and substring matching. Frequently used in entry-level coding challenges.
Hashing & HashMaps
IntermediateEfficient way to store and retrieve data. Commonly used for problems like “Two Sum” or counting elements.
Number Theory & Math
IntermediateProblems involving numeric operations, divisibility, series, and mathematical properties like primes, factorials, and gcd/lcm.
Dynamic Programming
AdvancedSolve problems by storing results of subproblems to avoid recalculations. Examples: Longest Common Subsequence, Knapsack Problem.
Stacks & Queues
IntermediateImportant for problems involving order of operations. Example: Valid Parentheses, Next Greater Element.