During the coding stage, the candidates typically have to write array-related, linked list-related, tree-related, graph-related, and other fundamental data structure problems. These problems check the skill of using logic, optimizing performance, and producing clean, readable code.
Attention to detail is also crucial. Interviewers prefer a systematic approach: breaking the problem, logical thinking, and trying out solutions. Understanding time and space complexity usually separates the good performers from the rest. Programming languages such as Python, Java, and C++ are commonly used in most of these rounds.
Dynamic programming, recursion, and pattern matching might be some of the more advanced questions. Mock tests and carefully selected challenges from practice tools are good for practice.
