How many times can Noi take the exam alone? What about other computer games? Urgent! High reward!

The high school computer competition is a series of NOIP-NOI-IOI, which is held once a year. As long as you are still a high school student, senior three students can only take part in NOIP, not provincial teams, that is, they can't take part in NOI, so they must take part in NOIP first (the preliminary round is about 165438+ the rematch is about 0). If you win the first prize, you can go. If you get the top four in the province, you can take part in NOI. In the first half of the second year, NOI (provided that you can enter the provincial team, that is the top four). If you win the second prize, you can easily enter Tsinghua. If you get the top four in the country, you can enter the national team. Then you can take part in IOI (International Competition) in the summer vacation. At any time, you can win at least a silver medal (China students have too strong test ability).