Mining algorithm C

1. Speaking of bitcoin, it can be hot recently. The Internet is discussing this mysterious currency everywhere, even in the economic journal. Newspapers are discussing the feasibility. Bitcoin is popular among computer geeks. These people are yearning for freedom. It is said that when Nakamoto published his paper, bitcoin has become increasingly popular. Many foreign websites and even shopping have accepted bitcoin payment, but domestic ones are relatively few. The value of bitcoin is relatively high now. It is worth more than 300 US dollars and more than 1000 RMB yuan, which is very attractive. But it is just a stock, which goes up and down. It's more risky than special procts. Please be careful when you enter the trade
today, I'll write down my experience and tools in bitcoin exploration. I'm also a novice. I'd like to share with people who love bitcoin
1. Download your bitcoin e-wallet first. There is bitcoin client on the Internet. It doesn't need to be registered. It is bound to your computer by default. After downloading and installing, it will change your network data block. This is enough. I heard that it is to download all the information of network nodes. It's global. How big should it be? I've updated it for several days and finished downloading the data block
bitcoin client interface:
2. The interface is relatively simple. With this client, you can make bitcoin payment and collection. You can see a string of numbers and letters below by clicking on the circle in the figure below. You can the string and send it to others. If you give the bank card account number to others, they can pay. You can click "send currency" and paste the account number sent by others to pay for bitcoin. There is no third party in this process, So it's safe
3. How to mine is also an important way to proce bitcoin. mining tool is guiminer, it is a green package, that is, folder, do not need security, download it directly decompression can be used, find the icon below, double-click to run
interface:
4. If you have a tool to use, you need to find a good place to proce minerals, that is, a mine pool. Now the output of bitcoin is less and less. If you dig bitcoin, you don't know when and when. If you are a Galaxy series supercomputer, let's talk about it separately. Personal computers can be ignored. There are many mines, But it is known as deepbit, the world's largest mining pool of bitcoin. Its website is
https://deepbit.net/
log in to the website to register an account. Click my account
5, enter my account information, here you can see your miner information, how much bitcoin the account has, C contribution
6, specific settings of my account
1. Enter the address where you accept bitcoin in the box. Don't write it wrong, or you'll be digging for nothing, as mentioned in the picture and text above
2. Minimum value of automatic payment:
set by yourself. When you have so much money in the mine pool, this website will automatically type the money to your bitcoin account address set above. You see, the above settings are important
3 set miners, click Create
New
vorker, Chinese is to create new miners, miners can help your mining workers, you can set more than one, and then excavate in a lot of computers, the effect is more obvious, the income is more rich
write freely on the name, to write in English, foreign things better write in English
write the password by yourself, don't write it too long, it's simple, it's not important
failure detection threshold
(1-3600
minutes):
just write 60,
when the miner doesn't work, send an email notice*<
: choose not decisively, refuse spam,
payment method: choose decisively, pull according to proportion, pay more for more work, which is in line with human development
click the last point
Sava
setting
to save your miner and return to see your miner's information
7. Fill the miner information into the mining tool guiminer,
file - & gt; new
opencl
miner-> Fill in your favorite name - "sever" select deepbit - "user name to fill in the miner's name. Remember to add the miner to your mailbox in the form of your registered account. There is a password on it, you know. Device
is to choose what hardware you use to work, usually with a graphics card. Select the graphics card you want to use. If you can't find it, remember to update the graphics card driver, Then start
mining. You can sit and wait for ore collection. The specific speed depends on your computer configuration
note: there are many ore pools and tools, but I won't introce them to you, just because I use what I said above. Whoever uses knows, there will be a place to speak, and I may not understand others. Be careful, the electricity bill is not enough. If you really have it, you can buy and sell bitcoin on China bitcoin network and exchange it for real gold, right.

3. Qwertycoin, which has been popular recently, was built by the geek team in Germany for 18 months. It is a secure anonymous coin that focuses on privacy and is used for global
secure payment. Qwc has no pre excavation and ICO, and adopts cryptonight algorithm (supporting mainstream mining machine X3 and A8 +) POW mining.

4. Please refer to: http://jingyan..com/article/7f41ececc5707c593d095c90.html
speaking of bitcoin, it can be hot recently. The Internet is discussing this mysterious currency everywhere, even in the economic journal. Newspapers are discussing the feasibility. Bitcoin is popular among computer geeks. These people are yearning for freedom. It is said that when Nakamoto published his paper, bitcoin has become increasingly popular. Many foreign websites and even shopping have accepted bitcoin payment, but domestic ones are relatively few. The value of bitcoin is relatively high now. It is worth more than 300 US dollars and more than 1000 RMB yuan, which is very attractive. But it is just a stock, which goes up and down. It's more risky than special procts. Please be careful when you enter the trade
today, I'll write down my experience and tools in bitcoin exploration. I'm also a novice. I'd like to share with people who love bitcoin
1. Download your bitcoin e-wallet first. There is bitcoin client on the Internet. It doesn't need to be registered. It is bound to your computer by default. After downloading and installing, it will change your network data block. This is enough. I heard that it is to download all the information of network nodes. It's global. How big should it be? I've updated it for several days and finished downloading the data block
bitcoin client interface:
2. The interface is relatively simple. With this client, you can make bitcoin payment and collection. You can see a string of numbers and letters below by clicking on the circle in the figure below. You can the string and send it to others. If you give the bank card account number to others, they can pay. You can click "send currency" and paste the account number sent by others to pay for bitcoin. There is no third party in this process, So it's safe

3. How to mine is also an important way to proce bitcoin. Mining tool is guiminer, it is a green package, that is, folder, do not need security, download it directly decompression can be used, find the icon below, double-click to run
interface:
4. If you have a tool, you need to find a good place to proce minerals, that is, a mine pool. Now the output of bitcoin is less and less. If you dig bitcoin, you don't know when and when. If you are a Galaxy series supercomputer, let's talk about it separately. Personal computers can be ignored. There are many mines, But it is known as deepbit, the world's largest mining pool of bitcoin. Its website is
https://deepbit.net/ Log in to the website to register an account. Click my account
5, enter my account information, here you can see your miner information, how much bitcoin your account has, C contribution

6, specific settings of my account< br /> 1、< Your bitcoin address to receive payment: & gt; In the box, enter the address where you accept bitcoin. Don't write it wrong, or you'll be digging for nothing. The picture and text above have said that
2. Minimum value of automatic payment: set by yourself. When you have so much money in the mine pool, the website will automatically type the money to your bitcoin account address set above. You see, the above settings are important
3 to set up miners, click create new vorker, Chinese is to create new miners, miners can help your mining workers, you can set up more than one, and then dig in a lot of computers, the effect is more obvious, the income is more rich
just write the name casually, to write in English, foreign things better write in English
write the password by yourself, don't write it too long, it's just simple, it's not important
failure detection threshold (1-3600 minutes): just write 60,
send email notification when the miner doesn't work? *: Choose decisively, refuse spam,
payment method for miners: choose decisively, pull according to proportion, pay more for more work, which is in line with human development
finally, click Sava setting to save your miner, and you can see your miner's information when you return
7. Fill the miner information into the mining tool guiminer,

file - & gt; new opencl miner-> Fill in your favorite name - "sever" select deepbit - "user name to fill in the miner's, remember to connect your registered account with your mailbox and miner's, there is a password on it, you know, device is to choose what hardware you use to work, usually with a graphics card, select the graphics card you want to use, if you can't find it, remember to update the graphics card driver, Then start mining. You can sit and wait for the ore to be collected. The specific speed depends on your computer configuration
note: there are many ore pools and tools, but I won't introce them to you, just because I use what I said above. Whoever uses knows, there will be a place to speak, and I may not understand others. Be careful, the electricity bill is not enough. If you really have it, you can buy and sell bitcoin on China bitcoin network and exchange it for real gold, right.

5. Mining is definitely the first professional mining machine. Many new children's shoes will choose to use the graphics card to mine, but the graphics card mining is just like doing a professional job with the "magic oil", but the efficiency is certainly not high. To dig bitcoin, we should pay attention to the following points: first, computing power (i.e. mining speed), second, power consumption, and third, stable performance. Computing power, bitcoin mining is faster than problem-solving speed, so it is self-evident that speed is more important; Power consumption is directly related to efficiency, that is, the issue of cost expenditure; The stability of performance mainly depends on the stability of calculation force when the working frequency is constant. Just think about it, no one wants the miner to lose its computing power every so often, or even break down. After all, it's all money ~
the general computing power of the graphics card is a few gigabytes, while the professional miner chip is as high as several thousand gigabytes. Take bm1387, the chip with the lowest power consumption in the world, as an example, the S9's computing power is as high as 14T, the power consumption on the wall is only 1400W, and the rated computing power reaches 13.5 Th / s ± 1 J / GH + 12% (wall, AC / DC 93% efficiency, 25 ° Rated voltage: 11.6 ~ 13.0v, in addition, in the case of non independent power supply, three power calculation boards can be connected to different power supply respectively, but each power calculation board can not be connected to multiple power supply, and ensure that the power calculation board is finally powered on
among the mining machines, ant mining machine is my favorite. At the same time, based on the average investment cost of bitcoin in the early stage, ant S9 can basically recover the capital in about five months, and the income in the later stage is immeasurable.

#include<stdio.h>

intcmp(constvoid*a,constvoid*b){
return*(float*)a-*(float*)b>1e-6;
}

intmain(intargc,char*argv[])
{

intn;
while(scanf("%d",&n)!=EOF&&n){
inti;
floatx[n];
floaty[n];
for(i=0;i<n;i++)scanf("%f%f",x+i,y+i);
qsort(x,n,sizeof(float),cmp);
qsort(y,n,sizeof(float),cmp);
printf("%.2f%.2f
",x[(n-1)/2],y[(n-1)/2]);
}
}

8.

Bitcoin is actually a useless string of numbers, but it is recognized as useful, just like diamonds, antiques, calligraphy and paintings, game skin and so on. They can't be eaten or used, but we will recognize their value

"mining" just allows more people to participate in the construction of blockchain network. Is it really good that so many electricity charges are used to "calculate" a series of virtual values? Bitcoin is not a hedge. The price of bitcoin fluctuates greatly. Speculation on bitcoin may become rich overnight or become poor overnight. Bitcoin is not as safe as it claims. In 2014, the world's largest bitcoin trading website, mtgox, was hacked and went bankrupt, and the $467 million worth of bitcoin evaporated instantly. Criminals use it to launder money, evade taxes and so on. It is also quite difficult for the government to investigate. The above personal opinions are welcome to be criticized and corrected. Agree with me, please click like before you go, thank you! Like me, please pay attention to me, thank you again