fork download
copy 
  1. import std.stdio;
  2. import std.conv;
  3. import std.range;
  4. import std.algorithm.iteration;
  5. import core.bitop;
  6.  
  7. void main(string[] args)
  8. {
  9. 	auto n = 100; // в сраном онлайн-компиляторе нельзя указать аргумент коммандной строки
  10. 	//auto n = args[1].to!uint;
  11. 	auto y = iota(n + 1).map!(x => popcnt(x)).sum;
  12. 	writefln("y = %s", y);
  13. }
  14.  
Success #stdin #stdout 0s 2648KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
y = 319
https://ideone.com/g0m5Ca
language:
D (dmd 2.085.0)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!