Re: C# to D

[Dennis Ritchie via Digitalmars-d-learn]

On Wednesday, 25 March 2015 at 19:01:43 UTC, bearophile wrote:
One solution:

Thanks.

On Wednesday, 25 March 2015 at 19:03:27 UTC, bearophile wrote:
But calling "count" for each item is not efficient (in both C# 
and D). If your array is largish, then you need a more 
efficient solution.

A more effective solution for C ++:

#include <iostream>
#include <vector>
#include <range/v3/all.hpp>

int main() {
  using namespace ranges;

  auto rng = istream<int>( std::cin )
           | to_vector
           | action::sort
           | view::group_by( std::equal_to<int>() )
           | copy
           | action::stable_sort( []( const auto& e1, const auto& 
e2 ) { return distance( e1 ) < distance( e2 ); } );
  std::cout << ( rng );
}