cpp rand
std::srand(std::time(nullptr)); // set rand seed
v1 = std::rand() % 100; // v1 in the range 0 to 99
v2 = std::rand() % 100 + 1; // v2 in the range 1 to 100
v3 = std::rand() % 30 + 1985; // v3 in the range 1985-2014cpp rand
std::srand(std::time(nullptr)); // set rand seed
v1 = std::rand() % 100; // v1 in the range 0 to 99
v2 = std::rand() % 100 + 1; // v2 in the range 1 to 100
v3 = std::rand() % 30 + 1985; // v3 in the range 1985-2014c++ random number
#include <random>
typedef std::mt19937 MyRNG; // the Mersenne Twister with a popular choice of parameters
uint32_t seed_val; // populate somehow
MyRNG rng; // e.g. keep one global instance (per thread)
void initialize()
{
rng.seed(seed_val);
}
int main() {
std::uniform_int_distribution<uint32_t> uint_dist; // by default range [0, MAX]
std::uniform_int_distribution<uint32_t> uint_dist10(0,10); // range [0,10]
std::normal_distribution<double> normal_dist(mean, stddeviation); // N(mean, stddeviation)
while (true){
std::cout << uint_dist(rng) << " "
<< uint_dist10(rng) << " "
<< normal_dist(rng) << std::endl;
}
}Copyright © 2021 Codeinu
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