Final Answer:
The specific answers to questions in the "Data Structures and Algorithms in C" fourth edition textbook cannot be provided as they are not available in this AI model's training data.
Step-by-step explanation:
Access to specific answers from copyrighted textbooks is restricted. In general, it's essential for students to engage with the material, attempt exercises, and seek understanding through discussions or resources provided by the instructor. Utilizing solutions manuals, if available, is another resource for clarification.
Learning algorithms and data structures involves problem-solving skills, and the process of grappling with questions contributes significantly to understanding. If facing challenges, it's recommended to consult the textbook's supplementary materials, reach out to instructors or peers, and explore online forums for additional guidance.