I want to learn DSA and do Leetcode but I'm confused where to start
Currently in 1st year, I have completed basic c++, all the loops and c style arrays and stuff like that, now I'm confused how to proceed, I open up a leetcode problem and there is time and memory and all that stuff and I don't know how to deal with it, there is also the weird thing of class stuff that should be at the beginning of each question, I don't know where to learn all of this.
Can someone suggest where to learn all of this, because I couldn't find a proper series that teaches all of this. Also tell me what things I should learn before I start doing leetcode, I have already started learning STL, is there anything else I should learn?