CS101 to full-time coding interview in 1 month
How do I do that?
You don't. You simply won't see enough material over the course of a month to pull that off unless you get very lucky and the right questions come your way. Most qualified applicants have a 4-year cs/math degree, then finally apply. 1 month won't do much. 2-3 months of a couple hours of training per day might though.
Well, a month of CTCI or leetcode definitely don't hurt. Additionally a month of failing interviews and learning the questions you failed the next day won't hurt either.... ...What needs to end is the perception that you can learn the skills to pass these interviews in a month. There's a reason people with ten years experience review for weeks going into interviews.
Are you a developer now? What do you mean by staying at CS101?
Leercode
Like leetcode, but more leering at your neighbors
How do you use leetcode?