Re: how to get top N distinct elements from range?

[Andrea Fontana]

On Friday, 8 March 2013 at 23:44:40 UTC, bearophile wrote:

Simpler:


import std.stdio, std.range, std.algorithm;

void main() {
    iota(5).map!((x) {
        write("*");
        return x;
    }).filter!(_ => true).array;
}

Chech this:

5.iota.map!((_) {
                auto x = uniform(0, 1000);
                        writeln(" MAP-1 = ", x);
                        return x;
        }).filter!(_ => true).map!((x){ writeln(" MAP-2 = ", x); return
x; })().array.writeln;

Here some function calls front() internally (filter? map?) to
check some conditions and triggers random creation again.