ACM Competition Experience

ACM Competition Experience:
This article is recommended to be printed and put together with the template.
1. The evaluation of the game will be slow, occasionally will encounter more than 10 minutes to return the results of the situation, this period of time can not wait for the results, must start other questions, if WA, two problems at the same time. Each question must be printed first.
2. The meal at the game is not for you to eat at that time, it is for you to eat after the game. Basically, the first few teams in the game are not eaten unless they lead a lot.
3. Many players, especially the first time to participate in the competition, to a new environment, all when the tour, visit the visit, find classmates to find classmates, play Lele put the matter behind the head, the results of the game naturally no good results, such examples too much. So after the entry to the place to always remember that they are to play, good rest, preparation.
4. The day before the competition to sleep more than 10 hours, it is very helpful to maintain the energy of the game, many times the game to 3 hours of players are boring is the reason. The day before dinner and breakfast to eat good, the reason ibid, to know that the next meal will be 3 o'clock in the afternoon after the game to eat.
5. To the new environment, always pay attention to stay away from disease, cold enteritis disease is not small, but is the natural enemy of the results.
6. English is not good, can not understand, to check the dictionary, lazy once less a problem, away from the medal.
7. Can be nervous, to eliminate panic, panic is the enemy of the question, any time, if found themselves or teammates appear flustered situation, remind deep breathing.
8. Do not make mistakes when tapping code and sample data, pay special attention to text information.
9. The first simple question to the team of the most stable people do, in case of trouble also do not panic, if there are many teams are out of the more need not worry, it must be a simple problem, it must be done quickly, a few minutes later than the penalty dropped 20 points good. Also take care not to PE.
10. The last hour is the height of the quiz, who loosens and who lags behind. The last hour is normal, two better.
Each of these articles has a source, each containing the lessons of the past, each of which may waste your efforts for a year, not to belittle.
Some of the following articles come from other schools, some of which are summarized:
11. Whether or not it is passed, all the questions must be read all the time, it is best to have more than two read each question, as far as possible to eliminate the phenomenon of the title. To fully understand the test instructions, the right to judge the difficulty of the problem, do not take it for granted.
12. Although the discussion contributed to the question, but in the past the first place in each division is basically fighting each other, but mutual understanding, feel that a problem suitable for other people to do is changed hands.
13. Keep your mind flexible and think about astray when normal methods are not working, such as special data structures that are not common, plus preprocessing, time-limited searches, etc. Efficiency is the first, if you feel DP trouble with the memory search, in short, after considering clearly in the shortest time.
14. The competition needs to be more stable than usual, check out the key place after the procedure, try to 1Y. For WA's problem, do not change a place on the hand, it is likely that the wrong place, to be stable, to understand under pressure to be careful. The test for WA is complete and must be measured at every point, but not necessarily particularly complex. Consider the various boundary conditions of the test, such as the Matrix, which may be 1*1 or 1*n or m*1.
15. Unless there is a lot of people, the final consideration of complex geometry, accuracy caused too many problems. Double type operation should be careful to determine the size, absolute value and so on. Generally do not use the float type.
16. Block copy be careful to check that the appropriate section has been modified correctly.
17. Write the program on paper to be as complete as possible, the machine time of each problem (including input, test and debugging) not more than one hour. Program error if the moment can not be ruled out should be printed out to read and put the machine out.
18. Pay attention to the question number when submitting, do not stagger the question. This situation occurs because of the pc^2 interface.
19. Try to think of the math that the topic can use.
20. Initialization is essential.
21. Array row subscript do not reverse, bit operation or string which is 0 and n do not reverse.
22. Remember to turn off all debugging information when you submit.
23. It is really a necessity to substitute for a problem.
24. After thinking, write the program before you think about time and space efficiency. There will be no more than 30 seconds in the competition (except in the foreign division), 10 seconds and above generally not more than 3 lanes.
25. The competition opportunity is only once a year, training for a long time, if there is an omission in the game, then the next year will be regretted. For those who are not ready to compete next year, they should cherish the last chance of entry.