How to write the table of billiards competition (league) and the table of points!

You can do this, because one * * * forty people can be divided into twenty pairs, and the defeated can enter the defeated department, and vice versa, so there are twenty people in the two parts. By drawing lots, five people who won the final victory were selected from the two parts to join forces, and five people were eliminated through the competition, and finally five people were left. Because the number of people is odd, you can hold a short round robin (three to five games is enough) (each person). This method may be a bit complicated at first, but in order to give the loser another chance and make the activity more interesting, the time will not be too short. If you score points, the champion who did not fall into the losing game can get full marks of 5000, 80% for runner-up, 70% for three or four, 50% for five, 30% for sixty, and 11 or 20 10%. The points of players who fall into the losing game will be reduced by 5% in the ranking position percentage, and will not be scored after 20.