Hi everyone.

Is there any collection of problems categorized based on the Data Structure?

For example, people say when you are learning you should be able to solve at least standard problems of specific data structure. I want to know what are those standard problems?

What I can think of is, as parenthesis is a standard problem of stack (or two pointers), binary search is a standard recursion, d&c problem. I am looking for something like this for all the data structures and algos.

I feel like the frequency of Div. 3 contests has decreased. Is it just me or it really has decreased?

Hello everyone.

Myself Nikhil from India. Due to some unfortunate circumstances I have to take a gap of an year in my academics. I am currently in my final year and will pass out in this August. I'm going to apply for higher studies in next year. Now, I wanted to dedicate all this time to be really good at competitive coding. Please provide me with a roadmap to follow as I have no idea where to start, considering I have knowledge of basics of programming (no DSA). Please help.

Thank you