#include "histogram_internal.h"
void find_minmax(vector<double> vec, double& min, double& max) {
    min = vec[0];
    max = vec[0];
    for (double x : vec) {
        if (x < min) {
            min = x;
        }
        else if (x > max)
        {
            max = x;
        }
    }
}