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1. Int rand7 ()2 .{3. Return rand () % 7 + 1;4 .}5.6. Int rand10 ()7 .{8. Int x = 0;9. Do10 .{11. x = (rand7 ()-1) * 7 + rand7 ();12 .}13. While (x> 40 );14. Return X % 10 + 1;15 .}Analysis: To ensure the even distribution of rand10 () on integers 1-10, you can construct a r

PackageCom.swift;ImportJava.util.HashSet;ImportJava.util.Random;ImportJava.util.Set; Public classSuijishu_test { Public Static voidMain (string[] args) {/** Get a random number between 1-20, total 20, requires no weight*/Random ran=NewRandom (); SetNewHashset(); intnum; for(inti = 0; I ) {num= Ran.nextint (20) + 1; SYSTEM.OUT.PRINTLN (num); Set.add (num); } System.out.println (

int rand7() { return rand()%7+1; } int rand10(){ int x=0; do { x=(rand7()-1)*7+rand7(); } while(x>40); return x%10+1;} Analysis: To ensure the even distribution of rand10 () on integers 1-10, you ca

From: http://blog.csdn.net/furturerock/article/details/6850634View Code 1 int rand7() 2 { 3 return rand()%7+1; 4 } 5 6 int rand10() 7 { 8 int x=0; 9 do10 {11 x=(rand7()-1)*7+rand7();12 }13 while(x>40);14 return x%10+1;15 } Analysis: To ensure the even distribution of rand1

/*************************************** ************************C LanguageAUTHOR: liuyongshuiDATE :************************************************ ***********************//*Question 10: Use recursive algorithms to design functions and calculate 1*3*5*7 *... * (2n-1 ). */ # Include Long fac (int n); // original function declaration, returns an odd number multip

Title. and the number of requests that are behind this-n refers to the number of users? Means: When 10 users request a server, there may be 1 concurrent or 1-10 concurrent, or maybe 0 concurrent? Ab-n 10-c 1 http://localhost/a

I took the book Java confusing again from the library. Now I want to repeat it again. Unlike reading this book in my junior year, I decided to take some notes. Take some time every day to read some puzzle to make the dull brain clearer. When reading every puzzle in this book, it feels like Fan Wei's Role in the sketch, it is often said that "this is the case ". However, the difference is that reading puzzle makes people smarter, rather than being fooled. So I decided to write a series and read i

Chapter 1 method (1) (2) and chapter 10 Method 1. What is the role of the method? Make the program shorter, clearer, and easier for program maintenance. It can improve the efficiency of Program Development and code reusability. 2. Four Elements of method definition: Method return type method name form parameter list an

Thinking in Java notes (1 ~ 10) 1. Data Type testing Class A {public int I; Public double D; public float F; public long l; Public Boolean B; Public char C; Public short S; Public byte ;} public class classtest {public static void main (string ARGs []) {A = new A (); system. out. println (". I = "+. i); system. out. println (". D = "+. d); system. out. println

As early as itpub saw a SQL expert, like the puzzle, the following is a puzzle. I tried SQL Server to resolve this issue.With 1 points,5 points , 10 points , 25 points , 50 cents coins into one yuan, a total of several combinations of methods? SELECT'1*'+RTrim(A. Number)+'+5*'+RTrim(b. Number)+'+10*'+RTrim(c. Number)+'

10. Dynamic Planning (3) -- 0-1 backpack problem, 0-1 backpack In the previous article "9. Dynamic Planning (2) -- Subsets and problems", we talked about Subsets and problems and their implementations. Backpack problems are actually a subset and a type of problem, but the problem is not "determining the problem" but "optimal problem ". The problem with a backpack

Random Number problem-it is known that there is a Random7 () function, returns a random natural number from 1 to 7, so that the Random7 () is used to construct a random 1 ~ Random10 ~ 10. random7random10 Math. random () randomly generates the float number between (0, 1), and Random7 randomly generates an integer betwe

bubbling Algorithm > [0] is the minimum value - for(intj=0;j//number of rows to compare to for(inti=0;i//Number of comparisons (number of columns) + //the more rows you compare, the fewer times you need to compare the number of accompanying numbers, and the less you need to-j the last number so you don't have to compare so-1 - if(t[i]>t[i+

matrix two-dimensional array in } - Private Static voidPrintArray (int[] arr1) to //??? How it came to be, why did it happen? + { - //The fourth step is to establish a two-dimensional array arr2 The index traversal output assignment. the for(inti=0;i){ * for(intj=0;j){ $System.out.print (arr1[i][j]+ "");Panax Notoginseng }system.out.println (); - } the } + A}Three, nine Gongge1 Public classninetable {2 3 /*4 * Output Nine lattice5

PAT 10-1 find the specified character in the string, pat10-1 Baidu's practices of the other two are to judge whether a match is matched first, and then use a for () loop output. Of course, I also judge it first, and then directly puts (), the question setting requirements and code implementation are as follows: /* Name: Copyright: Author: Date: 03/04/15 Descripti

View code //// Main. M // money /// enter a specified amount (in Yuan, for example, 345.78) from the keyboard, and then display the number of different denominations that pay the amount, required to display 100 yuan, 50 yuan, 10 yuan, 5 yuan, 2 yuan, 1 yuan, 5 cents, 1 cent, 5 points, 1 cent each how many sheets // cr

Total time limit: 1000ms Memory Limit: 65536kB Describe Super Marie is a very classic game. Please output a scene from the Super Marie in the form of a character drawing. Input None. Output as shown in the sample example. Sample input No Sample output *******

Top K Algorithm DetailedApplication Scenarios: The search engine logs all the retrieved strings used by the user each time they are retrieved through a log file, with a length of 1-255 bytes for each query string.Assume that there are currently 10 million records (these query strings have a high degree of repetition, although the total is 10 million, but if you r

1. Problem description In large-scale data processing, often encountered a kind of problem is to find the highest frequency of the largest number of top K, or from the mass of data to find the maximum number of the first k, such problems are commonly referred to as "top K" problem, such as: In search engines, statistical search the most popular 10 query words , in the song Library, the highest download rat

Again to brush face questions, haha.Requirements: Use for loop to print 1-10, each number appears at an interval of about 500ms.Analysis: Research points-closures, block-level scopesMode one, the use of closures + immediately execute the function, his thoughts at that time also think so, but the results do not reflect the interval 500msfor (var i = 1; i After mod