"Lin Xie, be serious. You should despise this competition strategically. It's not a competition. It's no different from what you usually do on the blackboard. But on the battlefield, you must pay attention to it. You must see every word clearly. You must find the essence of the core problem through the superficial appearance of the dozens of words. Before writing, you must think well and find a good angle. One by one solution, if there is a problem in the middle that stops you, don't keep pestering, skip it and continue to do the next one. After all, this is a competition problem. It's very normal if you can't...