Answer to the question no :01
Name of the topic have learned this week are
1.Data structure(introduction)
2. Data structure application (link-list, tree, queue, stake, graph)
2.Dynamic memory allocations.

Answer to the question no.2
A data structure is a format for organizing, processing,and storing data.It helps to store data for the purpose of working on it with various algorithms.
It store the all information about data values, relationship between data and functions and
other things. so data structure is very important and its the foundation of computer science.

Answer to the question no. 3
real-life example of
1.tree-computers folders
2. graph- maps
3. queue- buying tickets,a car wash
4. stack- a pile of books, dinner plate,stacks of chair