If the number of 48 people is 1 ~ 48, there are 24 people left after the first round of 24 games, 12 people left after the second round of 12 games, 6 people left after the third round of 6 games and 3 people left after the fourth round of 3 games. At this time, the game can't go on.
Therefore, the rules of badminton competition stipulate that the number of places in the knockout should be the power of 2 closest to the number of participants. The nearest power of 2 and 48 is 32, 48.
● Use 32 bits (16 bits) to solve problems: according to the rules, 2, 3, 6, 7, 10,1,14, 15,/kloc. The remaining 15 bits are handled in the same way. In this way, there will be 32 players in the first round and 16 games. The winner is 16, and in the next round (the second round), 32 pairs 16 games (16 games, 65438+) will be the final champion and runner-up.
You need16+16+8+4+2+1= 47 to decide the champion.
● Solve with 64-bit (16 or more) bye: According to the rules, 2, 7, 10, 15, 18, 23, 26, 3 1, 34, 39, 44. Corresponding to 1, 8, 9, 16, 17, 24, 25, 32, 33, 40, 4 1, 48, 49, 56, 57, 64,/kloc-0.
In the second round, 32 wins 16( 16), 8 wins (8 wins) in the third round, 4 wins (4 wins) in the fourth round and 2 wins (12 finals, 2 wins) in the fifth round, and finally won the championship.
You need16+16+8+4+2+1= 47 to decide the champion.
pay attention to
(1) When using 32 digits to grab the number, the number will range from 1, 2A, 2B, 3A, 3B, 4, 5, 6A, 6B, ... to 32***48 digits.
When using 64-bit bye, remove 2,7, 10, 16, and the remaining 48 numbers.
(2) The draw is random, and athletes can draw by themselves or others on their behalf according to the registration order, but there is a principle to be observed: the players in the same unit (the same department) should be divided into different upper and lower areas, and there are too many people in the same department, at least they should be divided into different116 or 1/8 or 65438+. (position 32, 1 ~ 16 is the upper part and 17 ~ 32 is the lower part. 64, 1 ~ 32 upper part, 33 ~ 64 lower part).
I hope my answer can help you.