different hats

Main topicInteractive questions.The coordinates of a point on the output plane, which the interaction program gives to this point (white or black).So repeat $n $ ($ 1\le n \le 30$).The $n $ points required for the output are different, and no matter how they are dyed by the interactive program, they can find a straight line separating the white and black dots (the dividing line cannot pass through the staining point).The coordinates of two points on t

This week's technical book "white hats talk about web Security". This book reminds me of Wu Hanqing, a young technical master. One of the owners of quickshield. I think the attack defense is amazing and I want to know more about it. So I chose this Redbook. Now, let's move on to the subject. Today I saw Part 1-world security concept. It is a relatively simple concept to explain security awareness. Summary: 1. The essence of security issues is trust is

Three white hats-Roman series 2-writeup 0x00 Why does a good Web become misc? Friendship Boat !!!! http://4e79618700b44607c.jie.sangebaimao.com0x01 fetch source token There is no Tips generation problem, the source region must be the first. Right-click to view the source region. there is no such thing. check the header. Set-Cookie source=WXpOV2FXTXpVbmxMUnpGclRsTm5hMWd3WkVaV1JuTnVZekk1TVdOdFRteEtNVEJ3VEVSTmMwNXBhemxRVTBrMFRWZEZNRTFxWTJr The answer

I learned the famous six HATs thinking method today and thought it was very practical. The following is a summary: 1. An effective way to get information (white hat) Proper emotion, intuition, and hunch in Decision Making (Red Hat) How to Use logical Positive exploration methods (yellow hat) in evaluation) Exercise caution when using appropriate and limited methods of reverse logic exploration in the evaluation (Black Hat) Creative and true meani

Three white hats-looking for you from the stars-Phase I, three white hats-looking for you from the stars-Phase I challenge introduction I lost you from the stars. I may need to use everything I have to use to retrieve you. After two sentences are compiled, I can't make it. okay, I admit that this is the first issue of penetration.Challenges Http://0761e975dda0c67cb.jie.sangebaimao.com/0x01 information colle

The three white hats are from the stars. you (1) writeup officially made three white hats for the first time. it is not easy to do it. you have also stepped on many pitfalls... 0x00 challenges I lost you from the stars. I may need to use everything I have to use to retrieve you. After two sentences are compiled, I can't make it. okay, I admit that this is the first issue of penetration. Tips 1: SSRF T

HDU-1247-Hats Words Http://acm.hdu.edu.cn/showproblem.php? Pid = 1, 1247 In the dictionary tree, you can divide each word into two words to see if both words are in the dictionary tree. Note that there is a slight difference between the creation time and the previous time. When inserting a word, you only need to record the node at the end of the word and do not need to record all the prefixes of a word. # Include

Red Hat is easy to use, ...... Many Commands are made by their own units ...... Standard Linux does not have their commands, and some commands on its own system cannot be used together. Many ProgramIt is also chilling to make the call .... I used an hour ...... Sin, sin ..... Do not use commands such as service crond stop together with self-starting commands. do not recognize standard Linux commands or red hats. Fortunately, I have experience in ope

Three white hats-looking for you from the stars-the first phase Challenge Introduction From the stars you are lost by me, I may need to use all my everything to get you back, made up two sentences can not be made up, OK, I admit this is a problem of infiltration, is so direct. Challenge goals http://0761e975dda0c67cb.jie.sangebaimao.com/ 0X01 Information Collection Open address, is a DZ theory altar. It doesn't seem like much fun, it's the lates

Test instructionsThe interaction problem should have been carried out on the plane.In fact, a straight line can be, in fact, to be more complex on the plane.SolutionAssuming that the \ (l\) dot is a black point, \ (r\) is the white dot, then place the next point at \ (l + r/2\) , then recursively.Code#include CF1064 e-dwarves, Hats and extrasensory abilities

Topic linksFor a discussion of an element's classification, it is possible to know the total number of colors of n elements.For example, the a[1] category discussion:If the color of 1 is the same as an element, the total number of colors is a[1]. A[i] is either equal to a[1] (i is the same color as an element, with a count of a), or equal to a[1]+1 (i is the only color, the number is B).To satisfy: B is not equal to n-1 (must have an I and 1 colors the same); maximum number of colors = (a+1)/2+b

detached or the operating system is reinstalled, users cannot access the client. The advantage of network access control is that it works closely with network devices based on user identities, and security policies can be enforced. Its disadvantage is its complicated deployment and high cost, which is widely used in large and medium-sized enterprises. Different levels of access control The access control technology has its own advantages and disadva