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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

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

We know that a function f can obtain a random number ranging from 1 to 5 with equal probability. How can we obtain a random number ranging from 1 to 7 with equal probability? Int rand7 (){Int;While (A = rand5 () * 5 + rand5 ()> 26 );Return (A-3)/3;} AlgorithmThe idea is:1. Use rand5 () * 5 + rand5 () to generate 6

JEESZ distributed architecture 1 -- install JDK 7 in CentOs (Environment preparation), 1 -- centosjdk7 Declaration: Because the runtime environment is based on the Linux system, some preliminary environment preparations are required before the framework is implemented.Many instances are installed on jdk7 in CentOs. As the post-blog serves as the native tutorial o

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

// -- C ++ shortcut tutorial -- Chapter 7 -- function, Part 1: Basic knowledge (Part 1)// -- Chapter 7 -- function, Part 1: Basic knowledge// -- 11/14/2005 mon.// -- Computer lab// -- Liwei // -- Program #1 Scope# Include Using na

Regular Expression of phone number (mobile phone number, 3-4 area code, 7-8 live video number, 1-4 extension code) (\ D {11}) | ^ (\ d {7, 8}) | (\ d {4} | \ d {3})-(\ d {7, 8 }) | (\ d {4} | \ d {3})-(\ d {7, 8 }) -(\ d {4} | \ d {3} | \ d {2} | \ d {

Question: It is known that a function rand7 () can generate a random number ranging from 1 to 7. Please provide a function that can generate a random number ranging from 1 to 10. Ideas: If we know that a function can generate a random number ranging from 1 to 49, how can we generate a random number ranging from

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

Problem description: there are now n ordered arrays in M groups, such as {1, 2, 3, 4}, {2, 3, 6}, {1, 3, 5, 7 }, select the data smaller than K in these arrays and return this value. Idea: Compare the minimum data selected each time by referring to the process of merging two Arrays 1. Define the selection position arra

Suppose rand5 can generate 1 ~ randomly ~ Use rand5 to generate rand7 () 1 ~ 7 (Equal Probability) 1. use rand5 to obtain rand2 (). When the number generated by rand5 is greater than 2, It loops until it generates 1 or 2 and the probability of generating

[PTA] 7-1 find the smallest string for the input N strings, output the smallest string (c ++), pta7-1 7-1 find the smallest string this question requires programming, for the input N strings, output the smallest string.Input Format:The first line of the input is a positive i

One-to-many association relationshipCorrelation characteristics: 1 of the party has n the one side of the collection attribute, N of the party does not have 1 of the side of the referenceFor example, if the customer has a one-to-many association with order, the customer has an order collection attribute, and the order does not have a reference to the customer. This allows the customer to retrieve all of the

C Language Enhancement (7) linked list intersection question _ 1 judge the intersection of a non-circular linked list, intersection _ 1 This blog post explains an ancient intersection of linked lists in five articles. Question Two head pointers of one-way linked list, such as h1 and h2, are given to determine whether the two linked lists are intersecting. Solut

Error 602: the row corresponding to index Id 1 of Object ID 1 in Database ID 7 cannot be found in sysindexes. Run DBCC checktable on sysindexesWhen learning Asp.net, I often need to attach other people's databases (*. MDF files in the appdata directory) to my In SQL Server, the following errors often occur when I use "all tasks --> attach: Error 602: the row corr