I frequently see advice along the lines of, "Solve 1000 problems and you'll reach rating X." While this might work for some, I believe it's actively harmful to many others. It sets a false expectation. People think, "Once I hit that magical 1000th problem, I'll finally reach my target rating." But when that milestone passes and nothing happens — or worse, their rating actually drops after the next round — it becomes incredibly demotivating to keep practicing.

A prime example of this is Rabari_9999. He has solved over 1000 problems, including 400+ problems rated 200 points above his current rating, yet his rating hasn't increased. He reached out to me, and according to him, he spends over an hour trying to solve problems independently. He is doing exactly what the CP community recommends.

What I'm trying to say is: there is no magic formula. There is no upper bound on the number of problems you need to solve to reach a specific rating (and no lower bound, either).