#include <iostream>
#include <vector>

bool find_minmax(std::vector<double> &numbers, double& min, double& max)
{
    if (numbers.empty()) return false;
    min = numbers[0]; max = numbers[0];
    for (double x : numbers)
    {
        if (max < x)
            max = x;
        if (min > x)
            min = x;
    }
    return true;
}