20190716 NOIP 4 exam simulation test reflection

Out of 127 points out of 300

The first question 10 gift points

  A desired title, looks very simple, but the probability and expected this one is not how I would spend an hour transfer him, and finally a bit QJ 10% of test points

The second question 90 points Communications

  Obviously shrink solver, solution to a problem is where to greedy, I was looking for the smallest side dfs again, we almost are greedy,

  But there are two variables forgot to initialize, resulting in only 90 points and finished within 1min test in AC, WTF exam!

The third question surprise 27 points

  547 Gangster 10 minutes played a violent 55 minutes from the end of the exam, lazy Lockey, violence against thieves got lazy set 27 minutes (do not have much time this question when the ~), otherwise I can think of O2 again the card will be able to add some pruning to 91 ~

Overall pretty good, a little disappointed that T2 no AC

  Come on! I'm Lockey!

  Row, I can do it, I'll do!

  

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Origin www.cnblogs.com/heoitys/p/11198890.html