High Precision Randomizer C++11

/*
    High precision randomizer using time since 1970 as unique seed
    Standard: C++11
*/

#include <iostream>
#include <random> //mt19937 randomizer
#include <chrono> //high resolution clock
#include <functional> //bind
using namespace std;

int main() {

    //accurate seed, seconds since 1970
    auto seed= chrono::high_resolution_clock::now().time_since_epoch().count();

    //high accuracy randomizer with integer range
    auto roll= std::bind(std::uniform_int_distribution<int>(1,4), mt19937(seed));

    int ctr= 100;
    while(ctr) {
        if(ctr%20 == 0) cout<<endl; //line break
        cout << roll() << ' ';
        --ctr;
    }
}