of one of your points.You are guaranteed this T ≤30 and that no data set contains more than points. All points with each data set would be is no more than to units away from (0,0).OutputPrint, on a places of precision, and the area of the smallest square containing all of your point S.Sample Input24-1-11-11 1-1 1410 110-1-10 1-10-1Sample Output4.00242.00SourceWaterloo Local Contest, 2007.7.14Idea: Single-peak function to find the extremum problem. The optimal solution is obtained by the three-p
= Platform_googleplay.new ()-- gp:createmenu_googleplay (self)-- gp:addto (self)The following is annotated to outsource the original written test, instead of the above code should be the same, but can not call GP.Cause: The same is because Platform_googleplay is integrated from the Cclayer, and there is no retain after creation, so the next frame is automatically recycled.Workaround: Change to create class directly.Local Platform_appstore = Class ("Platform_appstore")"
Topic Link: Click to open the linkThe main topic: given the coordinates of n points, now requires a square, completely surrounded by n points, and the smallest square area, the smallest square area.The expression cannot understand why the area changes with the angle is a single-peak function, waiting for Daniel to tell you that,If the area changes with the angle is a single-peak function, then naturally you can think of three points, according to the question asked to find the smallest square ar
pie above each color area represents the Y value. The rest of the work is running out. We randomly 0~3009 a number between the numbers in a clockwise direction, and you will find that this stochastic process satisfies the P (Y) probability distribution function we are pursuing.So, through the three processes of slicing, sorting, and random, we get a "fuzzy" Y value from a given condition X. This way is far more scientific than using envelopes to define the upper bound, and I think if this princ
Title Address: http://poj.org/problem?id=3301Description: T group test data, each set of lines input n, representing n points, then enter the coordinates of these n points, coordinates are integers.Requires a minimum square to cover all the points, output its area, accurate to two digits after the decimal point.Algorithm ideas: enumeration angle, calculate area, three-point enumeration(can refer to: Programming problem solving Strategy FAI ... 394 pages)Code:#include poj3301
This article illustrates the method of JS calculating the face value of Texas poker. Share to everyone for your reference. Specifically as follows:1. The code is as follows:
Copy Code code as follows:
var Poker = function (n) {
This.num = (n% 13) + 2;
this.ch = this.num > 9? ("abcdef" [this.num-10]): this.num;
This.show = "0,1,2,3,4,5,6,7,8,9,10,j,q,k,a". Split (",") [This.num];
This.color = "♠♥♣♦" [N/13 | 0];
this.tostring = function
Question:
Points are given in the two-dimensional coordinate system, and the area of the smallest square can be covered (the side of a square is not necessarily a parallel coordinate axis)
Solution:
For a point, if the coordinate axis rotates
DescriptionAfter a day trip with his friend Dick, Harry noticed a strange pattern of tiny holes in the door of hisSUV. The local American Tire store sells fiberglass patching material only in square sheets. What is thesmallest patch that Harry needs
Given some vertices, find the smallest square to cover all vertices.
Idea: rotate a square with a rotation angle (0 ~ 90), using the three-way method, find the smallest square (correctness is not proved ).
# Include # include # include #
The coordinates of many points are given and covered with the smallest square.
Question: three points. Pay attention to precision ····. Draw a diagram of the formula Shenma to solve the problem.
Double mid1 = (left + right)/2;
Double mid2 = (mid1 +
operator searches for each row in the specified table, ensuring uniqueness (No duplicates).
8.SQLite Update Statement更新 ID 为 6 的客户地址
sqlite> UPDATE COMPANY SET ADDRESS = ‘Texas‘ WHERE ID = 6;
修改 COMPANY 表中 ADDRESS 和 SALARY 列的所有值
sqlite> UPDATE COMPANY SET ADDRESS = ‘Texas‘, SALARY = 20000.00;
9.SQLite Delete Statement删除 ID 为 7 的客户
sqlite> DELETE FROM COMPANY WHERE ID = 7;
从 COMPANY 表中删除所有记录
sqlit
Inner Connection-INNER join
The INNER JOIN creates a new result table based on the join predicate combining the column values of the two tables (table1 and table2).
The query compares each row in table1 with each row in table2 to find matching pairs for all rows that satisfy the join predicate.
When the join predicate is satisfied, the column values for each matching pair of rows A and B are merged into one result row.
INNER JOIN is the most common type of connection and is the default connectio
object is as follows:.reindex(index=None,columns=None,**kwargs). Only one optional columns parameter is added to the column index. The usage is similar to the previous example, except that the interpolation methodmethodThe parameter can only be applied to rows, that is, axis 0.
>>> state = ['Texas','Utha','California']>>> df.reindex(columns=state,method='ffill') Texas Utha Californiaa 1 NaN
, respectively, referring to the interpolated value forward or Post-fetch value)The DataFrame object's re-indexing method is: .reindex(index=None,columns=None,**kwargs) . There is an optional columns parameter for the column index, which is more than the Series. The usage is similar to the previous example except that the interpolation method method parameter can only be applied to rows, that is, Axis 0.>>> state = [' Texas ', ' Utha ', ' California '
Bitwise operators
SqliteUpdate StatementInstanceSuppose the company table has the following records: ID NAME Age ADDRESS SALARY---------- ---------- ---------- ---------- ---------- 1 Paul 32 California 20000.0 2 Allen 25 Texas 15000.0 3 Teddy 23 Norway 20000.0 4 Mark 25 Rich-mond 65000.0 5 david 27 texas 85000.0 6 kim 22 South-hall 45000.0 Span class= "lit" >7 james 24 houston 10000.0
true.
(A > B) is not true.
Checks if the value of the left operand is less than the value of the right operand, or if the condition is true.
(A
>=
Checks if the value of the left operand is greater than or equal to the right operand, and if so the condition is true.
(a >= B) is not true.
Checks if the value of the left operand is less than or equal to the right operand, and if so the condition is true.
(a
);G_hash_table_insert (hash, "Virginia", "Richmond ");G_hash_table_insert (hash, "Texas", "Austin ");G_hash_table_insert (hash, "Ohio", "Columbus ");G_printf ("There are % d keys in the hash/n", g_hash_table_size (hash ));G_printf ("The capital of Texas is % s/n", g_hash_table_lookup (hash, "Texas "));Gboolean found = g_hash_table_remove (hash, "Virginia ");G_pr
required.
Wikipedia search
Best practices for the search box:
The search box must be available on all pages, not the homepage.
The search box must be long enough (such as Google's) for users to conveniently view and modify.
The search box must be intelligent. When searching, users can provide similar "common search terms" for their reference. In addition, when you enter a word, you can directly provide some "recommendation results" below 」. The search on the Apple official website is a goo
, search is meaningful. In particular, like Wikipedia, which has a large number of different areas of content of the site, "search" function is necessary.
Wikipedia's Search
Best Practices for the search box handy:
The search box has to be on all pages, not just the home page.
The search box is long enough (like Google's) to make it easy for users to view and modify.
Search box to be smart. Users can provide a similar "common search term" for reference when searching. In additio
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