{returnstd::rand()%i; }std::vector<int>myvector;//set some values:for(inti=1; i<10; ++i) myvector.push_back(i);//1 2 3 4 5 6 7 8 9 std::srand ( unsigned ( std::time(0) ) );//srand函数是随机数发生器的初始化函数。 //using built-in random generator: //std::random_...
[cpp]viewplaincopy 01.#include 02.#include 03.#include main() 05.{ 06. intarr[15]; 07. //srand(time(NULL)); 08. intseed; 09. while(1){ 10. scanf("%d",&seed); 11. srand(seed); 12. for(inti=0;i13. printf("%d\t",rand()%10); 14. printf("\n"); 15. } 16. ...
inthigh);// 输入上界high和下界low, 生成随机整数doublerandomReal(doublelow,doublehigh);// 输入上界...
问random_iterator in C++EN注意:上面的代码使用索引的vector，这对于迭代器来说是不可取的。理想情况下...
#include <iostream> #include <ctime> #include <cstdlib> using namespace std; int main () { int i,j; // set the seed srand( (unsigned)time( NULL ) ); // generate 10 random numbers. for( i = 0; i < 10; i++ ) { // generate actual random number j = rand(); cout <<"...
= end; it++)cout<< *it <<" ";cout<<" }\n"<<endl;// shuffle the elements in a random order.// the pointer_to_unary_function adapter converts a function to a// function object.random_shuffle(start, end, pointer_to_unary_function<int,int>(Rand));cout<<"After calling ran...
The following code example shows how to generate some random numbers in this case five of them using a generator created with non-deterministic seed. #include <random> #include <iostream> using namespace std; int main() { random_device rd; // non-deterministic generator mt19...
Returns a pseudo-random number in a [first; second] range. autoval = Random::get(-1,1)//decltype(val) is int //specify explicit typeautoval = Random::get<uint8_t>(-1,1)//decltype(val) is uint8_t //you able to use range from greater to lowerautoval = Random::get(1.l, -...
To control the range, use a uniform distribution as shown in the following code:C++ نسخ #include <random> #include <iostream> using namespace std; int main() { random_device rd; // non-deterministic generator mt19937 gen(rd()); // to seed mersenne twister. uniform_int_...
To include 1 in random number, we need to adjust the range in std::uniform_real_distribution‘s constructor as below: Include 1 in random number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 #include <random> #include <iostream> int main() { std::random_device rd; std::mt199...