Topic: Given n strings, the oldest string that appears at least two times for each string.How to solve the problem: at least two occurrences of each string and non-overlapping eldest-son string: Two-enumeration length after each string in the same group to keep a minimum position and a maximum position, and finally see if each string in the same group has at least two suffixes, and the suffix of the coordinate is greater than the length of the enumeration.POJ problem Set (classical)
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Given an array of integers, find out whether there is II distinct indices i and J in the array such th At the difference between nums[i] and Nums[j] are at most T and the difference between I and J I S at the most K.Thought for reference: maintain a window of length k, each time checking whether the new value is less than or equal to the value of all values in the original window. If the two for loop will time out O (NK). You can quickly search by using the subset function of TreeSet (backed by
Leetcode 220 Contains Duplicate III1. Problem Description
Given an integer array nums [], check whether two subscripts I and j exist.
| Numsi? Numsj | ≤ t
And
| I? J | ≤ k
.
2. methods and ideas
The general idea is: "Sliding Window" + unordered_map.The reasoning process is as follows:
| Numsi? Numsj | ≤ t? | Numsi/t? Numsj/t | ≤ 1
;From above, we can launch:
|? Numsi/t ??? Numsj/t? | ≤ 1
It is equivalent:
? Numsi/t? ε {?
-1) t) { return true; } } } return false; }}2, with a map implementation, similar to the principle of bucket sequencing, first turn the data into positive numbers, and the use of long (otherwise error, such as 2 and 2 divided by 3 equals 0, but 4 is greater than 3), while the bucket (t) = t + 1 (t = = 0 of the case to be discharged) Public classSolution { Public BooleanContainsnearbyalmostduplicate (int[] Nums,intKintt) {if(K ){ return false
Long time no struts2, today configuration strut2.2.1, startup encountered a small problem. Recorded.Tomcat Startup error:
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Class: com.opensymphony.xwork2.spring.SpringObjectFactoryFile: SpringObjectFactory.javaMethod: getClassInstanceLine:220- com/opensymphony/xwork2/spring/SpringObjectFactory.java:220:-1at org.apache.struts2.dispatcher.Dispatche
Is the winter of Web2.0 approaching? The collapse of the minsi blog and the imminent occurrence of large layoffs in the search seem to give us some hints ......, however, this does not prevent the emergence of search engines. The following is my collection of the world's most famous 220 most famous search engines. you can also read the Daily search engine news here.Question
The world's most famous 220 searc
There will be a bunch of Sb questions. In the future, Sb questions will not be coded at a glance to improve efficiency.
220 little bishops
Question: Ask N * n to put K pictures on the board. The pictures can attack each other on the diagonal lines.
SB question.
221 big bishops
As shown above, if the field is not changed, you can add a high precision. Now I can write errors with high precision, or roll back to PJ ..222. Little Rooks
Question: N * n abo
1. Data transfer of Interface jump(1) intent.setdata ()---Intent.getdata ();The data passed is relatively simple, usually a literal type of data string; If we pass on data that is more complex (several types), or longer, this method is less practical. (2) If there are a lot of different types of data passingIntent.putextra (key, value);• Basic types of data can be passed, and arrays of basic type data can be passed• The object must be an object that implements the serialized interface. Bitmap• P
Given an array of integers, find out whether there is II distinct indices i and J in the array such th At the difference between Nums[i] and Nums[j] are at most T and the difference between i and J are at the most K.Tips:See the topic, immediately think of the topic should be to use a length of the window of k, then the problem is to use what data structure to construct the window. Since when the new number comes in, we need to compare it to the size of other numbers in the window, we can use BS
plot summary:[Machine Xiao Wei] in [engineer Ah Wei] escorted into the [nine turn elixir] of the turn of the practice. Imagine a scenario:If you were allowed to take an Internet-connected computer to the college entrance exam, would you give up choosing a hand-held calculator and a draft book?? Ah Wei decided and Xiao Wei to try to use the computer to calculate high questions will be how the feeling. drama start: Star Calendar May 24, 2016 17:11:11, the Milky Way Galaxy Earles the Chinese Emp
When using IIS as an FTP server, the "220-Microsoft FTP service" message is displayed every time you use the default settings. To disable this prompt, you can solve this problem by using the following methods:
1. At a command prompt, change the location to the % SystemRoot %/inetpub/adminscripts folder.
2. At the command prompt, type
Cscript adsutil. vbs Enum msftpsvc , And then press Enter.
3. At the command prompt, type
Cscript adsutil set m
position does not need to delete, But this still time out, so think of in the tree array to delete the time also need two points, but wrote has been wrong, later borrowed from the discovery of Jiege, originally WA here, such as the current string is 01010, need to delete the 1,3,4 position character, to turn, when you delete position 1th, The string becomes 1010, you are in the tree array is to delete the state of the 1 node, so the original 3rd position in the current becomes the 2nd position,
Address: http://www.spoj.com/problems/PHRASES/
Question: Give You n strings and find the longest common compound substring.
Analysis: It is similar to the longest common repeated substrings of two strings. It is also used to synthesize all strings
Swift is an interpreted language, can it really do that fast, or 210 times times just a special feature on the speed of comparison, arithmetic should not be promoted so much?
Reply content:Contrary to the intuition of the questioner, arithmetic is
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