Заполнить вектор с использованием рандома

#include <iostream>
#include <stdlib.h> 
#include <time.h> 
using namespace std;
 
double GetRandomNumberFloat(double min, double max, int precision)
{
  
  srand(time(NULL));
 
  double value;
 
  value = rand() % (int)pow(10, precision);
 
  value = min + (value / pow(10, precision)) * (max - min);
 
  return value;
}
 
void main()
{
  GetRandomNumberFloat()
  double number;
 
  srand(time(NULL));
 
  number = GetRandomNumberFloat(0, 2, 2);
  cout << "number = " << number << endl;
}

#include <iostream>
#include <vector>
#include <iomanip>
#include <cstdlib>
#include <ctime>
using namespace std;
 
vector<double> GetRandomNumberFloat(int length, double min, double max)
{
    srand(time(NULL));
    vector<double> value(length);
    for (int i = 0; i < length; i++)
        value[i] = min + (rand() * (max - min)) / RAND_MAX;
    return value;
}
 
int main()
{
    double min = -2.0, max = 2.0;
    int length = 10;
    vector<double> value = GetRandomNumberFloat(length, min, max);
 
    int precision = 3;
    cout << "Vector with length " << length << ":" << endl;
    for (int i = 0; i < length; i++)
        cout << setprecision(precision) << value[i] << "  ";
 
    return 0;
}

#include <iostream>
#include <vector>
#include <random>
#include <algorithm>
#include <iterator>
 
std::vector<double> generateRandomVector (const std::size_t size, const double min, const double max) {
    std::random_device rd; 
    std::mt19937 gen(rd());
    std::uniform_real_distribution<double> urd (min, max);
    std::vector<double> v (size); 
    std::generate(v.begin(), v.end(), [&](){ return urd(gen); });
    return v;
}
 
int main() {
    constexpr std::size_t size {10}; 
    std::vector<double> v = generateRandomVector(size, -10., 10.);
    std::copy(v.begin(), v.end(), std::ostream_iterator<double>(std::cout, " "));
    return 0;
}