wolfenstein 1981

Reprinted please indicate the source, thank youHttp://blog.csdn.net/acm_cxlove/article/details/7854526By --- cxlove Question: There is a point set that asks how many points a unit circle can cover. Http://poj.org/problem? Id = 1981 N ^ 3. A circle with the most vertices must have at least two points on the circle. Of course n> = 2 and the result is greater than 2 In this case, enumerate the two points, find the Unit Circle of the two points, t

It's a little familiar. This is the expires information in the HTTP response headers. This time is not right. Isn't it a little strange. Find an interesting answer: It ' s an attempt to disable caching.The date is the birthday of the developer Sascha Schumann who added the code.File:session.cAuthors:sascha Schumann Andrei Zmievski ...Cache_limiter_func (Private){Add_header ("Expires:thu, Nov 1981 08:52:00 GMT");Cache_limiter (Private_no_expire) (T

AbstractThanks to the YouTube website, I can still see that the Chinese senmingcai in 1981 was created in "too many others !』 Sing the song "the first man in the case". At that time, there were only 16 Chinese dishes. Introduction "Please try again later !』 It is similar to the "super bright Avenue of Stars" election show, and the dishes come out with the "first man in the case, and the highest score in history. Honestly, this is the first time I he

When the distance of two points is less than the diameter, a unit circle is determined by them for the chord (although there are two circles, but want to know that only one can) to calculate the coverage of how many points.#include 　　"POJ 1981" Circle and Points

For any point already covered some points of the circle, can be offset by the circle, so that it is guaranteed to cover the point on the basis of covering more points//to this offset to the limit, that is, just make two points in the circle//In fact, the idea of this problem and POJ1106 is similar, but see the scope of the party in the [ 0,10] Think of random algorithm go//There is also a n^2logn practice, learn the circle on the arc is covered by the number of marks #includePOJ

Doublea)Const{returnPoint (X * A, Y * a); } pointoperator/(Const Doublea)Const{returnPoint (x/a, y/a); }voidRead () {scanf("%LF%LF", x, y); }}point[max];inline DoubleCalc (ConstPoint p1,ConstPoint p2) {return sqrt((p1.x-p2.x) * (p1.x-p2.x) + (P1.Y-P2.Y) * (P1.Y-P2.Y));inlinePoint Change (ConstPoint v) {returnPoint (-v.y, v.x);}intPointsBOOLV[max];int Stack[MAX], top;inline intGetans (ConstPoint p1,ConstPoint p2) {Doubledis = Calc (p1, p2)/2;if(Dis >1.0)return 0; Point o = Point ((p1.x + p2.x)/2

intMoD = mod-1; to Const intINF =0x3f3f3f3f; + ConstDB PI = ACOs (-1.0); - ConstDB EPS = 1e-Ten; the using namespacestd; * structP $ {Panax Notoginseng db x, y; - db ang; the BOOL inch; + }; A P A[n],b[n]; the db dis (P a,p b) { + returnsqrt ((a.x-b.x) * (a.x-b.x) + (A.Y-B.Y) * (a.y-b.y)); - } $ intCMP (P a,p b) { $ if(A.ang==b.ang)returnA.inch>b.inch;//Upper Point in front - returnA.ang>B.ang; - } the intMain () - {Wuyi intN; the while(SCANF ("%d", n) = =1, N) - {

Classic ry, where the unit circle covers a maximum of points. Here we use the O (N ^ 3) algorithm, which indicates that there is O (n ^ 2 * logn), but it won't. Method: Enumerate any two points and use this as the string to create a new circle. (PS:

=0]oktime Tak en:1.848 seconds# View Table Data hive> select * from emp;ok7369 SMITH clerk 7902 1980-12-17 800.0 NULL 20749 9 ALLEN salesman 7698 1981-2-20 1600.0 300.0 307521 WARD salesman 7698 1981-2-22 1250.0 500.0 307566 JONES MANAGER 7839 1981-4-2 2975.0 NULL 207654 MARTIN salesman 7 698 1981-9-28 1250.0 1

Solve the Problem of VM heap and VMheap LinearLayout linearLayout =(LinearLayout)this.findViewById(R.id.LinearLayout1); for(int i=0;i The physical machine runs normally, but the following problems occur when running the simulator: 09-07 05:58:48. 972: D/dalvikvm (1981): GC_FOR_ALLOC freed 48 K, 4% free 2739 K/2844 K, paused 24 ms, total 25 ms09-07 05:58:48. 972: I/dalvikvm-heap (1981): Grow heap (

Sequence Number functions provided by Oracle Take the EMP table as an example:1: rownum is the simplest sequence number, but the value is determined before order.Select rownum, T. * from EMP t order by enameRow rownum empno ename job Mgr hiredate Sal comm deptno1 11 7876 Adams clerk 7788 1987-5-23 1100 202 2 7499 Allen salesman 7698 1981-2-20 1600 300 303 6 7698 Blake manager 7839 1981-5-1 2850 304 7 7782

Tags: MySQLThis article mainly introduces the query syntax of MySQL in Where,group by, order BY, Limit,join,union, union All, child table and so on.Test data preparationCREATE TABLE EMP (empno numeric (4) NOT NULL, ename varchar, job varchar (9), Mgr Numeric (4), hired Ate datetime, Sal numeric (7, 2), Comm Numeric (7, 2), Deptno numeric (2)); CREATE TABLE Dept (deptno Numeric (2), dname varchar, loc varchar (13)); CREATE TABLE Salgrade (grade numeric, losal numeric, hisal numeric); INSERT IN

> select b.dname, a.job, to_char(hiredate, 'yyyy'), sum(sal) 2 from emp a, dept b 3 where a.deptno = b.deptno 4 group by b.dname, a.job, to_char(hiredate, 'yyyy') 5 order by 1, 2, 3;DNAME JOB TO_C SUM(SAL)-------------- --------- ---- ----------ACCOUNTING CLERK 1982 1300ACCOUNTING MANAGER 1981 2450ACCOUNTING PRESIDENT 1981 5000RESEARCH ANALY

, to_char(hiredate, 'yyyy'), sum(sal) 2 from emp a, dept b 3 where a.deptno = b.deptno 4 group by b.dname, a.job, to_char(hiredate, 'yyyy') 5 order by 1, 2, 3;DNAME JOB TO_C SUM(SAL)-------------- --------- ---- ----------ACCOUNTING CLERK 1982 1300ACCOUNTING MANAGER 1981 2450ACCOUNTING PRESIDENT 1981 5000RESEARCH ANALYST

, then group by for field A and finally group by for the whole table. If the statement is group by rollup (A, B, c), Oracle will first group by on Fields A and B and C from right to left , then group by for fields A and B, and then to field a Grou P by, and finally group by for the whole table. Below we will demonstrate an example of a rollup three field:Sql> Select B.dname, A.job, To_char (hiredate, ' yyyy '), sum (SAL) 2 from EMP A, Dept B 3 where A.deptno = B.deptno 4 Group by B.dna

In the previous query, the result is all records in the table. If you want to only display records that meet certain conditions, you must use conditional query or a restricted query. Basic Syntax of conditional query: SELECT * | (specific column names, such as ename and empno) FROM table (table name) WHERE conditions Note: The where clause must be followed by the from clause. For example, query all information of employees whose salaries are greater than 2000 in the emp table. SQL> select

databases read data from data files or buffers. If it obtains the first record, rownum is 1 and 2nd is 2. If you use>,> =, =,... and, because the rownum of the first record obtained from the buffer or data file is 1, it is deleted and then removed. However, rownum is still 1 and deleted, no data. Case1: SQL> select * from emp where rownum between 2 and 5; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO ----- ---------- --------- ----- ----------- ---------

is the specific department, the total number of employees of a specific type of work in a specific year, sum_sal is the sum of the salaries of employees hired in a specific department, type, or year. 2> View data is as follows: SQL> select * from emp_view; DEPTNO JOB HIRE CNT SUM_SAL---------- --------- ---- ---------- ---------- 20 CLERK 1980 1 800 20 ANALYST 1981 1 3000 20

record, then the rownum is 1,The 2nd article is 2. If you use >,>=,=,between...and these conditions, because the rownum of the first record obtained from the buffer or data fileis 1, then is deleted, then remove the bar, but RowNum is still 1, has been deleted, there is no data.CASE1:Sql> SELECT * from emp where rownum between 2 and 5; EMPNO ename JOB MGR hiredate SAL COMM DEPTNO---------------------------------------------- --- --------- ------CASE2:Sql> SELECT * from emp where rownumCASE3:Sql

Loading editor... doom resurrection and Wolfenstein 3D classic are only the beginning for id software on the iPhone, with everything from Wolfenstein RPG to the upcoming rage making their way to Apple's platform. as a matter of fact, Wolfenstein RPG has been completed for quite some time. as ID's John carmark explains it, his excitement over getting