A binary question about table tennis, I don t understand, please advise everyone!

1.121 games were arranged, with 1 bye; (243 2 = 121 remainder 1) 2Arrange for the winner to play 61 matches; (121+1=122/2=61)3.

Arrange for the winner to play 30 matches; Bye 1 person (61 2 = 30 more than 1) 4Arrange for the winner to play 8 matches; (15+1=16/2=8)5.Arrange for the winner to play 4 matches; (8/2=4)

6.Arrange for the winner to play 2 matches; (4/2=2)

7.Arrange 1 match for the loser to compete for fame;

8.Arrange for the winner to play 1 game and fight for the title. A total of 228 games were played, with 2 byes.

The number of positions in the first round of table tennis knockout must be the power of 2, and now there are 243 players participating in the competition, and the closest to this number is the 8th power of 2 256,256 243 13, that is, there are 13 empty positions in the first round, if the seeds are selected to have a bye in the first round, a maximum of 13 seeded players will be arranged, that is, there are 13 byes.

Bye] means that the player has no opponent in this round and directly enters the next round without playing.

Seeded players are determined by the organizing committee of the competition, generally based on the ranking, results or results of the previous competition.

The player's consistent performance is determined.

Seeded players: According to the previous competition results, the high-level players are selected as seeds, and then grouped by seeds, so as to avoid high-level players meeting too early and affecting the effect of the competition, which is not fair. So, seeding is only available in the knockout tournament, not if it's a round-robin, for example:

There is no seeded team in the Women's Volleyball World Cup.

In the knockout round, due to the number of people, if you are lucky, you can directly enter the next round of the game, which is a bye.

As for math problems, it's not my forte, hehe, to understand me, I'll do so much

The seeded player is the player who does not have to participate in the most junior tournament, and the top player. For example, in the men's singles table tennis of this year's Beijing Olympics, the top 20 players in the world are called seeded players, and they do not need to participate in a series of previous qualifying tournaments.

???Is it about table tennis??? It's math.

Can you explain why you think the first binary 1 from the left is a decimal 6 first?

Why does the first 1 from the left mean 6?

That's what it means:

I can only give the most commonly used one. Let's figure out the other ways for yourself

You can refer to these questions for yourself. There aren't many topics for this kind of thing.

The character of the athlete and the development of table tennis skills.

The impact of the change from 38 mm to 40 plus table tennis on table tennis, injury analysis and prevention of table tennis players.

On the technological innovation and market development of table tennis.

The benefits and disadvantages of table tennis on human health.

Analysis and research on the difference between vertical and horizontal table tennis rackets.

How to use the forehand rubbing technique to return the serve.

On the technological innovation and market development of table tennis.

One person holds the ball, the other five people put their hands out and put them in a row, and the person holding the ball quickly grabs the ball over the hands of the five people.

Does everyone have to use both hands?

Decimal to binary:

Divide by 2 toss until the result is 1

Write the remainder and the last 1 in reverse order from bottom to top is the result.

For example 302302 2 = 151 remainder 0

151 2 = 75 surplus 1

75 2 = 37 remainder 1

37 2 = 18 remainder 1

18 2 = 9 0 remaining

9 2 = 4 remainder 1

4 2 = 2 0 remaining

2 2 = 1 remainder 0

Therefore, binary is 100101110

Binary to decimal.

Starting from the last digit, it is listed as the first placeThe number in the nth digit (0 or 1) multiplied by 2 to the nth power.

The sum of the results obtained is the answer.

For example: 01101011Turn decimal:

Bit 0: 1 times 2 to the power of 0 = 1

1 times 2 to the power of 1 = 2

0 times 2 to the power of 2 0

1 times 2 to the power of 3 8

0 times 2 to the power of 4 0

1 times 2 to the power of 5 32

1 times 2 to the power of 6 64

0 times 2 to the power of 7 0

Then: 1 2 0

Binary 01101011 Decimal 107

2 4+2 3+2 1+2 0=16+8+2+1=272 4+2 3+2 0=16+8+1=252 5+2 4+2 3+2 2+2 0=32+16+8+4+1=61If it is a high-level computer language, the first 0 is a negative sign, and 1 is a positive sign, which does not count as an exponent of 2.

20 people don't love table tennis, 15 people don't love football, 12 people don't love basketball, 22 people love all, 60 people in the class, 20 + 15 + 12 + 22-60 = 9 (people), that is, the sum of 2 times that don't love two and three kinds of love, a + b + c + d + d] is 9 people, then the three don't love at most 9 2 = 4....1；

Answer: There are up to 4 people in this grade, and none of these three sports are hobbies, so the answer is: 4

Basic theory: find an anomaly in 3 balls, weigh it at least 2 times.

Steps: Put 3 on the left and right plates, and leave 6, first 12 into 6 or 12 into 3.

If there are 3, they will be separated twice; If there are 6, there will be 2 on the left and right plates, and there will be 2 left, and there will be 6 into 2.

Screen with 1 remaining normal ball, which of these 2 has an abnormal weight!

Fit?

First 6 on one side, exclude six, and then three on one side, exclude three, and then put the remaining three on one side, and if the scales are equal on both sides, then the remaining one is not equal, just in the two...

Difficult? Use two ping pong balls each time, if there is only one weight difference, it is equivalent to a balance state once, and it is OK to use one of them and compare it with the other 10. Isn't a minute enough??

The first time to weigh in half, the heavy side to take out two and then weigh in half, if both sides are the same weight, then take out the two unweighed to weigh the third time, if one side is heavy and then take the heavy half weighing.

Just put the ping-pong on the water.

Weigh the scale three times and then once with your hands.

ITOA is a widely used non-standard C extension function. Since it is not a standard C function, it cannot be used in all compilers. However, most compilers (e.g. on Windows) usually include this function in a header file.

It also depends on your ** and the compilation environment.

That is, the Itoa function is not declared.

First, check if the header file is being referenced.

Second, this function is not a standard C function and may not be supported by some compilers.