module pind.samples.ja.operator_overloading.operator_overloading_4;

import std.random;
import std.stdio;
import std.string;
import std.algorithm;

struct TimeOfDay {
    int hour;
    int minute;

    int opCmp(TimeOfDay rhs) const {
        return (hour == rhs.hour
                ? minute - rhs.minute
                : hour - rhs.hour);
    }

    string toString() const {
        return format("%02s:%02s", hour, minute);
    }
}

void main() {
    TimeOfDay[] times;

    foreach (i; 0 .. 10) {
        times ~= TimeOfDay(uniform(0, 24), uniform(0, 60));
    }

    sort(times);

    writeln(times);
}