What country are you in? If it is a more powerful country, this is completely impossible. What foundation do you have? If it is just newbie, it is unlikely to succeed.It's too late. To put it mildly, I advise you to give up. Too many people start earlier than you.

You absolutely CAN, but it depends on how much time and effort you can afford. Me personally, I went from Newbie (0) to Pupil (1363) in 3 months — I did not try really hard — so I think you can be Candidate Master after a year.

Hope this helps! You may be discouraged but don't give up!

no

Ask yourself only one question: will you enjoy it?

If you have the goal of making it into the ioi team, but you feel as though you won't really enjoy / learn / grow from the process, I recommend you don't do it, because you'll quickly lose motivation, and what's the point of doing something you don't like.

However, if you love doing cp, and enjoy discovering new algorithms and tricks, go for it, because even if you don't get to ioi, you'll still have fun along the way.

best of luck!

In China, if you want to participate in IOI (in recent years), you actually need to learn programming for 6~7 years. (starting from 10 or 11 years old) :P

It's impossible.

Unless you are jiangly or tourist