However, I can offer some general guidance on how to approach and solve such questions. Let's break down the process into several steps:

1. Read the Question: Carefully read and understand the question prompt. Identify the key information and requirements provided.

2. Identify the Problem Type: Determine the type of problem being presented. It could be related to algorithms, data structures, programming, databases, computer networks, operating systems, or other topics. This will help you narrow down the approach to solving the problem.

3. Analyze the Problem: Break down the problem into smaller sub-problems if necessary. Identify the inputs, outputs, and any constraints or conditions mentioned in the question. This will help you design an appropriate solution strategy.

4. Design a Solution: Based on your analysis, design an algorithm or a step-by-step approach to solve the problem. Consider the time and space complexities of your solution.

5. Implement the Solution: Write the code for your solution. Pay attention to details like data types, syntax, and edge cases.

6. Test the Solution: Validate your solution by testing it with different inputs, including corner cases. Ensure that the output matches the expected results.

7. Optimize if Required: If your solution is not efficient enough, optimize it by improving the algorithm or making necessary changes. Consider the time and space complexity trade-offs.

Remember, each question in the GATE CSE mock tests may require a different approach and may have multiple valid solutions. It's important to practice a wide range of questions to improve your problem-solving skills.

Please note that EduRev is an online learning platform that provides a wide range of educational resources, including study materials, mock tests, and practice questions for various exams, including GATE. You can find more information and resources on their website.